Wall painting

Hello. I have some questions to you.
I'm leaving my parents with my future bride for a new apartment. There is still necessary to do the repair. In my parents' house, I have my own room and I painted it with acrylic paints (photo at the bot.).
Parents used paint to cover the walls, so, no wallpaper there. But I was uncomfortable to paint on it.
Question - advise good paint for interior walls of the same light beige hue, only suitable for further acrylic painting.
I will also be grateful for the advice on applying this paint to the wall - what to use, roller, spray or something else?
Thank you all in advance.
My room wall photo - https://imgur.com/pBkvuAK
My room wall photo2 - https://imgur.com/Unk9tck