How to use the law to manifest dream life?

So recently my boyfriend (26m) and I (22f) broke up. It was really devastating because we lived together, had a Mexico trip planned (he’s there right now while I’m with my parents at home lol) and just had a whole life together. The breakup was a rug pull on both ends I guess. But also apart of me kinda knew that it may happen. I wasn’t getting anything done in my own life. I kinda lived my life in his shadow. I just felt so comfortable with him and stopped being a go getter and didn’t move forward and probably developed some bad habits. Also he was super wrapped up in his work and wasn’t attentive a lot of the time. Our intimate life became non existent. It made me really really sad and torn. I love this person and I know he loves me but we just are not working out right now. Anyways as hard as this is, because change is so scary, I do think it’s for the best.
I went to esthetician school but never took my boards so really locking in on that this month. I also did get a job at a really nice spa in my area being the receptionist. Things are looking up for me I know. I know that I need to be able to meet my emotional needs more and not fully rely on a partner. I need to just take care of myself and be grounded, and then the right relationship will follow eventually. But I wanna try manifesting my new life. Even though I know things are looking up I wanna use the law to help me in every way possible. I was able to manifest my boyfriend actually so I should be able to turn my life around and get back on my feet. How would you go about it? Should I script, should I just let good things come to me, should I do I am statements ? I do believe whole heartedly that I am going to do great things in my life but sometimes it’s really hard to see that, especially when you just get out a breakup with someone who was taking care of you financially and basically in every aspect. I just have to do that for myself. Ok so any tips or suggestions?