How to be a better muslim teenager?

If you really love him, and want to go on the striaght path, just tell him you guys can be friends for now, but wait until marriage. And just because you messed up, doesn't mean you should continue. Just when you have a few spare minutes take out the quran. One vowel, one sound of reading the quran has soooo much swaab you can't even imagine. And everyday do naamas and beg for forgiveness. Allah SWPT is most forgiving.