Why i can't get into a relationship?

It seems you're quite focused on yourself as you have in detail expressed here. Perhaps you are not aware of it, but people are drawn most to others who will make them feel good. Showing an active and honest interest in other people, complimenting them, listen to them etc. leaves usually a lasting impression and people will like to be around you.
Perhaps you should start going to public events or sports clubs, classes or any other events where you could meet girls or people in general. From casual encounters and friendships you'll see if something more develops.

You are probably trying to hard and it shows. Relax and go out and mingle!

A bit in line with what Calamity Jane said, are you interested in other people? I don't mean that sarcastically. Most people on earth don't care if you are buff or have the best shoes, they care, or not, about you as a person.

Perhaps you haven't gotten into talking a lot with other people. I was once quite clueless, except that I had read a lot of books, which gave me a boost, once I met people.

So -
Read
Meet
preferably at the same time.

Should i ask more questions or just listen or idk. I mean generally i do not speak a lot. Like a compliment on look and something just out of the blue is not awkward or? i went to some events, stood there alone, few people came, had a short talk and thats all. Really struggling. I dont get it.

I also saw what CJ saw. There are passions in life and you are taking them all but realising that, in that, you wish to share some of those. Perhaps when you listen to romantic music, you wish someone was there with you to share.

The problem is that if you do not know what is out there in the big wide world, there is nothing to talk about other than your passions, therefore, yourself.

There needs to be a balance because the girl you meet may like some of your passions but she will have her own. She will more than likely want to converse on things outside of that as well and you will be stuck.

Start having conversations with as many people as you can, asking about their loves in life, what's happening in the world that they don't like, politics, the movies. Broaden your vocabulary and therefore also bringing into your life the outside world.

We don't have to like what else is out there but it is important to know what's out there. As for dress sense you should be yourself. Too many people try to be someone else. But I imagine also a 25 year old girl wouldn't mind seeing a man dressed whereby she can look at him and go wow. Suits and casual fit into different places so does something that looks good that you also like. So why not start viewing clothes on line and see if you can broaden your own tastes .

You could be stuck in a "this is me" yet there is more to all of us once we start exploring.

My take is a little different, but not so different from previous posters. That is to say, my suspicion is that their advice may be correct, but may be difficult for you to implement into your life.
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You describe enjoying many different things, which gives you a wide variety of fields in which to meet people. And people are drawn to other people who have passion/s in their life.

You also describe numerous ways in which you describe yourself as different. (fashion, music, drinking, smoking, pubs / clubs)...and my guess is that the vast majority of people your age are into those things (that you aren't). And you mention getting away from it all, spending time with your thoughts.

It seems to me that you love life, that you like people, but that you don't relate to people easily?

If you don't relate to people that easily, then it is likely to mean you have a limited number of friends, and going out may be difficult (due to the limited number of friends), perhaps draining (if you are in a very crowded place with social expectations of mingling), and perhaps at times unenjoyable (if you don't like pubs/clubs/loud music).

My suspicion is that you are quite introverted (which basically means socialising drains you, rather than energises you - which is what an extrovert experiences), and have chosen a life style based around both your love of life, and introversion.

If that is the case, then while much of the advice given makes sense, it would be difficult for you to adopt in a way that would help you achieve what you want. If it is the case, I would recommend a different approach, that is:

Simply using a numbers game ie. go places that have people where you are likely to interact with other people on a regular basis:

- join clubs that share your interest (sports, cycling, photography, choirs, hiking/nature)
- take classes (drawing, music, photography)

A numbers game in fields that interest you is a very good idea (even if you aren't introverted), simply because, being in a place were others already share a similar interest to you, increases the chances of you finding others who share similar traits / values / other interests with you.