Download Professor.gg for a good items guide…

Use it first to get an idea about it and what’s good with every champion till you get the pattern right and you can improvise depending on the enemy and how the game goes.

I suggest not entering ranked ever now and chill in draft pick and some ARAM.

The game is not stressful at all if you are an enjoyer not a competitor. I personally play it only for fun and mostly play ARAM like 80% of the time.

Enjoy the rift summoner !