Will I (36F) ever have enough energy to live my dreams?

I've been treated for hypothyroid since I was a teenager. I've always been fairly low activity and now I work part-time, about 13 hours a week. I'm thinking about having a kid and I know that will be a lot of work and require me to work fulltime to support them. Will I ever be able to do it?

Last time I had a full time job was for 3 years starting in 2020 and I got so burned out. I found out after quitting, moving, and getting a new doctor that my thyroid hormone levels were not being managed properly. Despite my thyroid care being better I'm still kinda afraid to work full time. I still feel kinda tired/ happy to just laze about and I'm perfectly happy working part-time. Is there any hope for me?

Feeling discouraged :(