Don't spam everything because hard maps feel good. Averaging 85% on the maps you play is sh*t acc. The occasional 75% on a 6* song, 70% on a 8* song is also sh*t acc.
It's quite similar to ego-lifting. It feels good in the short-term, but it'll harm long-term progress. That desire to perform well and improve is good, use it correctly and it'll help you improve. Just don't waste it on spamming hard songs, then wonder why you hit a wall.
When I kept my ego aside and focused on consistent practice, I saw visible progress. I see progress, the ego gets back in my head and I start spamming again.
Moral of the Story:
Don't Be a spammer. Consistent practice with good enough accuracy (above 90%) over a long period of time will result in improvement.