Hello Moonbiscuit,
first of all, I want to say sorry you've faced fertility issues. Frankly I know nothing about Serum you were advised to. My issue was a bit different that's why we looked for egg donation clinics. But you have to pay attention to clinic’s services, you’d better define for yourself the options you want to get there, it will narrow your circle of searching.
May I ask you a question? You still want to try with your own eggs? Are sure about your eggs quality? Because you are not young as me anymore and with age eggs become with less quality, in any case you have to be aware of possible feedbacks