To earn badges after collecting them in previous runs, do you have to make a fake account to do another attempt or is there a setting to remove the badge already collected?

No you just get them like you already have. Like pretend your getting it again

It's possible to delete badges too if you were wondering: https://gyazo.com/94c354fde579f789e6e6c8fd00507c9b

Good to know. Thank you.

Wow i didnt know you could delete badges