I need help with lust?

I have struggled with for quite some time, but after a while of dating my girlfriend i have made it a goal to stop, for her, and i have been clean for a while. I have been dating her for 7 months, and we have not had or even done any , s, s, or anything like that. The furthest we've gone is rubbing outside of clothes and me feeling her up with her shirt lifted up while we make out. Last time we made out she started to get upset and said she always feels bad after making out, and misses the days when she was afraid to even french kiss she was so innocent. She said she never liked the way she felt after making out and was always happier just snuggling up with me and doing some light kissing while we talked and watched movies and such. I told her if she felt bad then we should try and just cut making out out for a while. She said she didnt feel like that was fair to me, but thats what she needed. I told her it was totally fine, and it wasnt worth her feeling so bad everytime My problem is that even though i LOVE doing the other things like snuggling and stuff, i am a 17 year old boy, and it is HARD not to want to make out with my incredibly gorgeous girlfriend. I get turned on so easily and struggle to keep my thoughts clean while we are together. on top of that the fact that i quit watching for her isnt helping with my lust issues at all. Im really struggling right now to not want to make out and feel her up and do all those things. I think i can do it, but i want it to be easier, i want to be happier. any advice?