ok can someone explain to me please

Every week diff is going up and down and my mining is constantly going down, from 310 1 month ago im mining 230 now
And another thing  when btc and alts going down rvn is going down, when all going up rvn stays the same and then all is going down again and rvn is going down, so ravencoin is only going down never up, it only fallow market when going down... at the moment mining is not profitable, electricity is costing more than i earn. From 10-12$per day im mining 3.5$ per day now..