Fastest Way to Level Account

Because I moved to LAN when it was free, I remade an account in NA to play with most of you guys and other friends.

Right now, it's level 14. I wouldn't have a problem with leveling it normally, but... Valentine's Day is around the corner and there's this new Heartseeker Ashe skin I want to gift to my lady crush, the problem is that I need to be level 20.

So... how to level fast?

You get 100% experience from beginner level bot games until level 20. I'm not sure how much ARAM gives.

You get 100% experience from beginner level bot games until level 20. I'm not sure how much ARAM gives.

I've read that that was changed, so I wasn't sure about that.

You get 100% experience from beginner level bot games until level 20. I'm not sure how much ARAM gives.

What do you mean by 100% exp?

What do you mean by 100% exp?

The EXP you get from bots starts to decrease for each level past 20.

The EXP you get from bots starts to decrease for each level past 20.

Ah okay.
Thank you.