Am I too late?

Am I too late to start this?

I'm a guy from Jakarta, Indonesia. Currently 18.
I started a bad journey when I was 11. My friend (classmate) asked me to play an online game at a cyber cafe. After that, he shows me one of the most popular Porn sites and my first ever video was a girl playing with her b-o-b (which is not a partner having sex).

Since that day, I feel very interested and want to see more about porn. Sadly, I got no internet access on my local computer that makes me limited to explore the bad thing at home. At this moment, I still barely watching porn.

Short story, I got internet access at home and starting to watch and explore the porn sites. There is nobody at my house on the day and this is like a highway to the hell for me, I can see erotic or porn easily.

I actively masturbating and watching at the same time since 12 till my last year in high school, which is 17. Like the most guy that masturbates, I felt guilty and shame after doing this sh*t. And this lets me ask myself "when you TOTALLY stop it?"

I have no girlfriend in high school, I just wanna be single but on the other side I need somebody that taking care of me.

Now, I'm 18 and in college. I spent half of my life in front of a computer because I like doing programming and computer-related thing.
I just wanna be a better guy with better character by increasing it daily.

 

TL;DR

Now I feel like I have to try hard to get an erection (even watching or touching my dikkies). I'm really aware of ED and hope I still can prevent it (or at least doing good exercises).
I often (or always I guess?) getting an erection in the morning without thinking of anything bad these last days. But last night I watched porn and do masturbate feel like it is hard to get an erection if the video is not my fetish.

So, that's why I titled the thread Am I too late?

 

Thanks for your feedback mate!
Yeah, I think my brain needs something new and something more powerful than before? Can we just refresh our memory and delete all of this kind of memory?

I'm trying to do a good diet and consume good nutrition for my brain health. And planning to exercise it with problem-solving.