What to do

An

Ive been married 4 years to my husband I’m not going to go into full relationship details we all have problems.. anywho my question is what do I do in this situation ... I have a 4yo and 6mo with him I do EVERYTHING for both kids he provides money and those sort of things I’m a sahm because that’s pretty much the only thing he will let me be my biggest problem with this marriage at the moment is we live in a small one bedroom trailer well it’s 2bdr but we use the other room for our dressers and closet space for all of our stuff now this is why I’m upset I sit in this tiny ass thing every day and we already laid the foundation and blocks to build a house 2 years ago kinda do as you go kinda thing he hasn’t touched it since starting it and refuses to put money towards it we own this land it’s an acre of land and flat and so pretty and we are so lucky to be able to do this he makes $25/hr and we have barely any bills since we own this place and I just feel like the house being built is such a priority for me and not for him , we also got 6k on income tax he used it on things like buying a junk car ,paying off a loan for his truck and I did get a 1000$ couch out of it but he pretty much wasted the rest and when I bring it up he says you don’t have a half you don’t work... yeah cause he wont let me and I just dk what to do anymore he works days comes home and sleeps and never wants to do anything but I can’t go places alone cause again he gives me NOmoney his money is his money which is another problem ugh Idk