My limit

IMO I thought I hit my limit going above and beyond for my family months ago. It wasnt until today that it feels completely different. I genuinely believe I hit my limit. I've been the main one to find jobs that the house and the family needs while everyone else gets a comfortable job they want. A job that's in AC, and job that feeds its employees and perks for the employees. While the jobs I get I'm outside, sweating, lifting heavy objects for 9-12 hours a day while everyone says I should find something else. But NO ONE else is doing what I do for the family. I alone have bought, assembled and looked for 98% of the furniture and appliances we use. My spouse has done the remaining 2%. But when it's obvious that I personally need help looking for things that are for the house, family or for myself everyone seems to drag their feet or not do it at all which leaves me to fend for myself and once I obtain what I need everyone wants to use it for themselves. Which is unfair for me. However I have noticed that when my spouse is looking for things their child (who is adult age) they go above and beyond necessary to achieve it. But I get very little if anything from my spouse. I have had the feeling that I'm only here to make their lives easier. I have had that feeling for about 3 years now. I thought(for a time) it was me overthinking or being over sensitive but it isn't going away and I can't shake that feeling no matter what. I've spoken to my spouse about it and my feelings only for nothing to change. From either of them.