Relationship advice

My boyfriend and I have been together a year this past Monday . We are both divorced and each have two children ranging from 11-8 years old . He’s had a rough home life and I’ve always had a lot of support from my family so I’ve been very sympathetic to us being in different places in our lives , even though many aspects are the same . I work full time and have my own apartment with my kids . He’s been working in the electrical union for the last 10 months and lives with his dad and his family for over 2 years now since he and his ex broke up . His home life and his job have been an issue from the get go. He turned 32 this year and I turned 30, so even though we have had some tough times in our lives , we are in our 30s. The job inconsistency is tough because he gets laid off and brought back into the Union for work so it’s still not very stable and even before he got in he worked a lot of odd jobs instead of holding down one consistent job. Financially we are in much different places too . I have had to work two jobs to afford my life as a single parent providing what I need with the kids and I’ve been fortunate with time and hard work to maintain that with my one full time job, but he’s never in a position to do that for himself , even when he’s working full time the jobs are too inconsistent and he never saves anything to get a place . This affects us because he basically has tried to live with me with his kids as well without really contributing to my household and help. This has led to many arguments because I don’t want to feel taken advantage of. He needs to be able to take care of himself and his two kids himself before we move forward together as a team and have a future . I’m staying firm I just haven’t seeing the results . I love him so much and his kids but it’s ultimately not my responsibility to take care of three more people . It’s hard enough as a single parent with the two kids of my own . The one year mark was bittersweet because the love is wonderful but also a harsh reality that not much has changed for the better with h swirl and financially. I don’t know what to do anymore . He understands my needs and feelings and agrees with me but I don’t think he can get his own place which would be the best way for us to proceed with our relationship . How long am I supposed to wait for things to get better ? What do you guys think ?