This hobby tends to be one of the more tedious to level because it depends on execution (aim/timing) and what spawns on the map. Rotation is mandatory.
Priority #1: collection (new species = real progress)
Whenever you can, play toward registering new insects and improving existing entries, because that pushes your progress more than repeating the same easy insect.
Events and opportunities (when they show up, abuse them)
Bug/insect events concentrate spawns and speed up the session — good moments to fill collection gaps and gain momentum.
The 15-minute routine that works
Pick one region and sweep 2–3 spots for 10–15 minutes.
If repeats spike, switch region immediately.
At the end of the session, do 2–3 focused attempts on a new species (even if harder).