Depression

Needing some advice I am currently a stay at home mom me and my fiancé have been together almost 3 years it will be 3 next month the end of august we aren’t married yet my ring still has not been shipped off to be fixed when it’s been 3 months I have mentioned it a few times it needed to be fixed I felt like he could’ve gotten it fixed with his tax return I feel like we never actually talk about when we plan on getting married I have try setting up a month and date and time for us to get actually married he never actually went through with it so I just completely stop bringing it up to him. I currently stay home with my two boys and I watch his two boys while he works and ex wife Monday- Friday i I do have a job on the weekends barely making anything for 11 an hour at a restaurant I feel like I need to do for more my two boys since there real dad hasn’t been in the pic to help rise them I feel like I need to work more during the weeks instead on just the weekends to actually save money up for a car of my own I can’t do that if I am staying home Monday - Friday I am willing to pay for daycare for my two boys but I can’t stay home anymore plus on top of cleaning laundry cooking taken care of my boys plus his which I do love them like my own kids I take care of them 24/7 while they work but I feel like I have been putting my life on hold other people I feel like that’s why I stay down so much and depressed sometimes because I am stuck in this house I just need some advice on what I need to do I haven’t said anything to him because I am scared I might upset him or make him think differently of me.