I'm stuck

So I'm 19. 20 In February and me and my boyfriend have been together since we was 14 -5 years and I'm at the age now where I want to do exciting things like move out or go on holiday or get engaged and even tho he says hes gonna ask me soon to be his wife I'm stuck on he doesn't want to move out or go on holiday because hes super charging his car and it takes time and money to do it.. his car have been off the road all this year and we have never done anything exciting.. he always says after the car always is done.. the car comes first I have been so paintion and I'm getting no where I'm so frustrating it's annoying I want to have fun and be young adults but I want to it with him and no one else 💔😴... we have had 3 miscarriages and I just want to take my mind off that and have fun for once is that to much to ask for