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busking, open mic, and midweek support are low XP and get starbits as result. but music lessons to get more XP and increase skill but no starbits reward.

Alright... so music lessons to get level 50... but your advice was "spam music lessons first until you reach level 50 and also have 1 million starbits"

How do I get the million starbits then?

you'll get it when you do a big level missions

Alright then. But first get that level and skill level you say?

yes~
Level to unlock better rewards missions
Skill to not reduce your starbits rewards as the ego will come up :3

Oooooh. I can see that I know nothing of the game mechanics then!

So, just like in Guardians of the Galaxy Vol. 2, Ego is a bad thing?

Yes, you'll face it when you become level 20 or have 1000 fans. Ego = permanent ego (from missions) + fans + temporary fans (drunker)
Your ego mustn't go bigger than your skill. If it's bigger then your starbits rewards will get reduced. 😅