electrical problem

hey, after i finished my body drop alot of my electrical shit doesnt work anymore, "speedometer, o-domter, fuel guage, dome light switch" but thats not so bad, recently i been having my dash lights fuse blow "t/l ctsy" but i think i found the problem for that one, until this weekend my taillights, tag light and now the dash lights dont work again...its bull shit, i checked all grounds and plugs, there arnt any other fuses that blew ether, but whats weird is that the dash lights blow one day and the taillights n tag light worked...but now all 3 of them dont work, what the hell is going on or what should i look for...i tried lookin for wire that has gone throw the firewall n might be grounding out but i dont think thats the problem...any help would cause less stress on me...thanks