I need help with beating the game

I play Rain World for almost 20 hours now and I’m yet to beat the game. I’m really struggling to progress in any way because of lack of knowladge of the game itself and the map. I’m currently at Filtration System at my 16th cycle (it’s my second try, the first approach took me 50 or so cycles and I haven’t progressed at all). I’ve already been to Looks To The Moon which I discovered by accident but now I’m stuck at Filtration System with the lowest karma. I know I need to go to the Void Sea (or smthing like that) but I have no idea how to even go there. I studied the map for hours and I don’t know where to go. I consider restarting my save again and trying one more time. My struggles really makes me leave this game forever as it is. I really wanted to buy Downpour but is it even worth it without beating the game once? I don’t know. I would really appreciate any tips and help from you guys. See you later!