Isabelle, I've had good results from most of the paras so far, but on one or two, I have felt a little "stuck" or something. Then along came the latest 4, and of those, I find that using "You Deserve It" and "Happy For No Reason" will move the blocks out of the way. It's happened every time for me.
The first one, You Deserve It, I think works well because the Other Than Conscious is the gatekeeper--and if the OTC doesn't think we deserve something, it's going to be a lot harder to attain it, maybe even impossible. YDI works on that.
The second one I think works because, and Marci writes about it in her book, few things we do make us "happy"--but if we're happy to start with, lots of things come to us more easily. She has a lot of good research in her book to back that up--but it's also been my experience in my own life. Nice to see that science backs me up!
So my method is to "get happy" (for no reason), clear it with the gate keeper, then go for the goal(d).

Anyway, maybe you can give these a try, then go after the goals you want, the ideal weight or other things. Both of these two paras work well with the other programs, or just on their own.