I think I need help...

Well, first, you're not in a terrible situation, you're already getting past 2 weeks quite consistenly, that's pretty good. And you're definitely doing good by staying PMO free, or clean as you like to call it.

I would suggest writing down when you feel guilt why you want to stop this stuff. And when you can't think of any reason, go look back at what you wrote down, how it makes you feel to do it anyway.
Stop hanging out with friends from highschool, if they have nothing to offer you except casual sex and casual sex makes you feel bad, just cut them out.
You need to learn to catch yourself getting to "seeking" behavior, where you're trying to find release, and steer that energy into something else. Like working out, or a creative activity.
I would also suggest getting an accountability partner, who you can message and chat with when you feel like running into a problem.
Good luck brother!

 

What limits us fapstronauts from doing the 90-day reboot is what is in our head.. what breaks everybody from the norm is what is in the head.. So when your brain is in pain distract the pain.
Am into one month today. Since then all i have done is read novels. A meanse to distract the brain. Its not that you can't its just that your brain keeps losing hope so find a distraction mine is reading, whats yours?

 

You are lucky you caught on to this bad habit at a young age. Get a girlfriend and have proper relations. It will be good for your physical and mental well being.

 

Hey mate. I hope you are doing OK.
In my opinion the fundamental cause of relapsing is not having a goal or a reason why to quit. We all want better health, deeper voice, better skin, blah blah blah... as much as these benefits are true(I have experience them in my 72 days streak which was my previous streak) they are not as motivating as they should be. And the reason is clear : they are not tangible.
You need to have this picture, vision, wish (whatever you wish to call it) in front of your eyes if you really want to quit.
You need to find that burning desire, that one thing that you want the most and stick to it. Because that is what gives you life. When all you want is to quit PMO you won't be able to achieve it, because that is not a goal. It doesn't mean anything... but when you find yourself a goal you just make a huge distance between yourself and your addiction and breaking free from that addiction is just something you find on the way to your goal.
I recommend you to read the book "you can heal your life" from Louise L. Hay. it's literally the best book I've ever read in my entire life. You could also search Stephen T. Chang on the internet...his books are amazing. Cultivating health during a reboot is the best way to achieve longer streaks and better life.
Hope this helps... and good luck.
Life Loves You!