Shen macro-game | Looking for help

I've been playing shen in my last games (only soloQ, emerald 2-3) and i literally got a 0wins - 5 loses, i didn't win any game with Shen on this account even though my kda and ults were on point. I feel like i'm missing how to manage macro game on Shen. I'm looking for advices, how do i actually carry playing Shen top? I feel like my ults are super usefull but besides that i don't know what to do, is Shen considered a good splitpusher or what's the ideal way to "DO SHEN STUFF" when your ultimate is down or you are behind in the game?

PLEASE I NEED HELP ON UNDERSTANDING HOW SHEN'S MACRO GAME WORKS. ( I play League since 2016-2017 and i literally know how every champ works and extra hidden "tricks" on most of the champions mechanics, my total games on Shen are like ~50, divided on my 8 years playing. I want to start playing only Shen cause he's chill af and also want to deep learn new champs for my pick pool.

Greetings community. I'm looking forward to read your best personal and well known tips and tricks for Shen and how you'all manage the entire game before and after lane phase ends.

THANKS!