So frustrated

the bf and I have been together for 4 1/2 years. We have talked about marriage as if it is a sure thing. For years. well I never made a big deal about it until he started dropping hints that he was going to propose, in his words "sooner than you think". this was 3 months ago. Since then, we have traveled across the country and been literally on top of a mountain, my birthday came and went, and now the holidays are here. So many opportunities for a perfect setting. well he still hasn't asked and now, get this, his fucking DAUGHTER just got engaged today. And the worst part was he had asked me once already. 3 years ago. Unfortunately I had lost my job the very next day before we even had the chance to tell anyone, and I didn't know what my financial status would be so we put off announcing it. He says he wants to ask again, and do it right with a nice ring, a nice night etc. cool, whatever. but I dont want that. I'm an LMT so can't even wear rings and I'm afraid to lose it, so I just want our wedding bands tattooed on and that's it. save our money for travel. he's been told this numerous times. well regardless of that frustration, I now find out that his 21 year old daughter is engaged to her bf of 7 years. I'm insanely happy for them but I'm furious that I now have to pay for my stepdaughters wedding before I can even have my own. It will be 4 more years at least before I can afford my own freaking wedding!. and this is exactly why I told my bf that he needed to get on it for exactly that reason and now look where we are. I have never been more pissed. Am I out of line or just overly hormonal? because I feel like I have every right to be frustrated, and now add on the fact that Im closer to 30 than 20, and he is 41, I want to be married before we have kids but I want to have kids sooner than later given his age and my PCOS. There are just so many things in my mind right now. I'm a wreck. And I feel so much like an afterthought in every other aspect of life, I thought my soul mate would be different. guess not.