Is it normal please give me some advice on how i could change

I'm the same way,
The first time I really thought I liked this guy, he was 18 and I was 16. My little sister was friends with his sister so I saw him a few times picking her up from his house. One day my sister came home and said that he thought I was cute and gave me his number on a piece of paper. We texted for a month straight and never hung out. Then at 12 one night he texted saying he wanted to see me and I asked him now? He said yeah. So I tild him to come to my house and I'll sneak out. He came and I slipped out thw front door. We walked in the woods behind my house then sat and talked for an hour in the woods. I was so nervous the whole time. At one point we held hands and then awhile later I looked over at him and he kissed me (my first kiss). I jumped up and told him it was late that I should go home so he walked me home and we barly talked. At my front door we hugged and he tried kissing me again but turned my cheek. He asked if I wanted to kiss again but I said no and went inside. He didn't text me for a week and I couldn't stand it so I said I wanted to talk. He came over and I couldn't even look him in the eye. He wasn't mean but I just don't know what happend we sat there for 20 minutes not really saying anything. He said good bye and I never saw or talked to him again. I should have said I liked him because I did and he didn't do anything wrong but I just couldn't. I probably pushed away a good guy. Similar things have happend since with guys but I don't know if its trust or what?

just let go and have more confidence in yourself, maybe you are not yourself around them, so you feel they dont really know the real you and that makes you want to run away.

You'll mature into a place where you can have real relationships.
I'm not saying you're immature... But being able to love deeply is a learning process. Learn to love yourself first...all the rest will come eventually. Don't worry =)

you may have trusting issues maybe because something happened in your life that made you distrust so much, or maybe your mind is telling you that you're not ready for relationships, maybe you should try dating someone and let your mind go blank and go with your instinct. You wont know distrust until you experience it, you cant tell the difference yet it seems. Im similar :)

I'm like that with everyone but my husband and sister. I have tons of "disposable" friends. With some people, thats just the way things go until you let one or two good people in. For me it took yearsss.

Trust issues for me have been the result of negative past experiences. Processing those is a big help.

im not siuire of how busy you are but take up running, get all the right gear you need and run and run, get fit and harden up and meet others but take it slow at first, good luck

I think it all just comes with age.

^^^LIFE IS SHORT^^^

Yes completely normal.. In order to trust some one u must of course trust your self first, lots of girls come up to me telling me how cute this boy is and ask me how to talk to him and all u have to do,I tell them, keep ur head up smile and believe in your self everyone is beautiful in their own way and when we have something come up just stand up believe in ur self and say heck with it...

Try new things..

I'd tell him/her I have trust issues and say it's gonna take time for me to feel comfortable with someone. You might wanna also check if that's just commitment problems too I'm not sure how to do that one though