I really need help with relationships..

Hi, I'm a 16 year old guy who always screws up his relationships. I always act over clingy and can never leave her alone. I use emotional blackmail without realising at the time. I only just realised I was doing it because a friend told me that. Also, things I did in the past catch up and it puts her off the relationship. I don't know I screw up because of my depression or what...I just need advice on what to do..

from what you're saying, i'm thinking you can be a very caring boyfriend, so just learn to tone down a little, learn to give her a little space. girls do appreciate 'nice' guys who are willing to respect their space