New player

Don't even know what to ask, there's just so much. I'm familiar with top down roguelikes in this style (I play survivor.io and brotato a good bit) and just feel so lost, not with movement, kiting, exp management, etc. But just how to unlock things, what I should unlock, what's the optimal weapon choices, what survivors are strong. Is there anything other than these things I also need to know? Will take all help I can get.