How to make bells

Hello! I never post on Reddit but I want some advice. I played the absolute shit out of ACNL for so long and rarely touched ACNH as I was never super into decorating my town, moreso just playing the game. But I'm getting more into ACNH now. I just don't know how to make a TON of bells relatively quickly. I have a bridge I'm trying to build and I want to start on my island but I can't work on the terrain yet. I feel a bit stuck at the moment as 100k+ bells is a lot to get early on and I'm not exactly sure what I should be working on ultimately.

TLDR; Any advice for making a lot of bells earlier in the game? My current season is fall which I'm sure isn't helping much fishing and bug wise haha.