I'm now panicking and all considering avast blocked it and of course I immediately pressed the go back button on my phone, I cleared chrome and download cache and forced stop them so they don't download anything, am I fine?

You're drastically overreacting. If you closed the tab you're fine. If you really want to be paranoid you can clear your cache, cookies and browsing history.

Don't worry, the worst that could happen is you saw granny tits while misclicking the ad

yes I did technically tab out as I pressed the back button wich as a result did kill it, but I'm overtly weary now

I tend to be really paranoid with this, it's like I have a fear of malware and I don't know how to take it easy

Yes, you're fine, lad. No need to panic, just clear your cash, take a deep breath, and enjoy your day.

You're fine. The ads are intrusive but I don't believe any of them have malware. I'd suggest getting the ability to block said ads either as a supporter or an active user.

kgfjrb711 is the site it led me to, and it had a very long url wich started with a js file named gtm, idk if having cleared all of the browser data and forcing it has done anything to that

I'm sorry man. Say goodbye to your mother. Actually, I don't know if you've got enough time left for that...

how is this related in any way possible?????

I'm sorry, I was just being sarcastic. You're fine, just opening a link isn't usually dangerous by itself.