[2021] 50y old guy wants to play LoL

In advance sry for this english I am from Germany

I'm 50 y old and started playing League of Legends six months ago. I've learned a lot of stuff from another player and this helps a lot for understanding the whole game

I am currently playing Toplane with Nasus, Skarner and Garen but at this moment only Nasus. Until now against bots (intermediate)
It has unfortunately become boring and I would like to play against real players and
I'm a bit afraid of it but I want a challenge

Do you have any tips and tricks for me on what I should pay attention at the beginning as a beginner?
Of course I know that my reaction time is not the best but I enjoy the game and would like to try it

by the way my gamertag "Schwarzbunte" is a northern German slang for a cow. It comes from agriculture. Nothing racist :D

Thats it, I hope you all have a good day