How do I solve my problems that I have brought onto myself for bot being honest?

I am a captain of a robotics team and in seventh grade. My robotics team does not really respect me and is usually making inappropriate jokes. My robotics group is made up of eighth and sixth graders so I dont really see them outside of robotics. The attitude they have towards me and robotics even though they chose to be there really gets me and upsets me. Last year when I was in sixth grade a seventh grader who was a part if my robotics team and me became friends but really did not talk outside of robotics. This year he is in eighth and is captain of his own robotics team lets call him M. M saw for himself the way my team treats me and is always there to support me especially when i felt like quitting robotics which is my favorite thing to do. He did not know that i wad really close to quitting he just supported me. Whenever my robotics group overwhelmed me i would go to talk to him. Overtime we became good friends in and out of robotics. Naturally my robotics team loving to get on my nerves decided to start this whole thing that me and M like EACH other especially me liking him. I was starting to crush on M was the truth. I decided to talk to my best friend c and told her about my robotics group but i left out the part that i actually have a crush on him. I have never been good at expressing my self especially when it came to my feelings and on top of that her older brother is M's best friend. i was scared she might let it slip. Since i wad going ti miss a meeting for robotics and new my group was capable of telling M, I decided that i was going to tell him basically a similar version of what i told my best friend. the meeting that i would not attend was after school so during lunch after my first official meeting as president of media club i decided to tell him. I walked up to where he was on the basketball courts but just my luck in that moment he was going after a ball. His best friend aka my best friends older brother asked me what i wanted and instead of saying i need to talk to m i said do you want to join media he did not but in that moment m walks up probably thinking why are they talking since i never talk to his best friend. The truth was we did need eighth graders. So i also asked m if he wanted to join and he said yes. I decided to invite him to eat lunch with me on monday since it was friday and he agreed. Since i still was worried about my group telling him after school. Especially since his little sister is in his robotics group so she would hear too. I didn't want him to be called out like that so i was determined to tell him. The main reason i did not want to tel him was in fear if he would ask me do you have feelings for me. gathering all my courage right after school i went to the robotics and basically pulled him out and we walked and i told him everything except my true feelings for him. He was not surprised because i guess the hints my robotics group were dropping were obvious. But he wasn't really opposed to us dating so there might be something. One of my other friends who i had plans with saw me and interrupted our conversation and I-never got to hear what he thought.On monday my best friend joined us for lunch since we had a huge project due that we had to finish. I did not really get to talk to him like i had hoped and media club i s meeting tomorrow and he will be there and i do not know what to do. He might like me back but i am not sure. The school year is coming to the end and if i do not do something i may never see m again since he is going to high school. Him being a year older is also a huge challenge. I do not know what to do. Do i tell my best friend the truth? Do i tell M how I feel?