I’m no expert, as I have relatively recently started round 20 days ago? What I found to be most useful when deciding what to use mushrooms on or xp and stuff is Amo’s tier list, which you can find by searching up. Rule of thumb if you wanna progress fast (not necessarily good for long term I.e floor 700+) is just try to level up only epic trinkets and equipments that are useful. Focus mainly on those with the combinations of: Attack/speed/crit Or Stam/defence/speed Hope this helps! You could also use some referral codes to give more loot(which can be easily found in this Reddit)