I’m sorry to hear that — unfortunately, the short answer is no. With your cell lines all down, even doing growth factor shots like G-CSF won’t bring all of the lines up. Usually in someone who has received a lot of prior treatment, it’s primarily that the marrow is getting burned out being on overdrive trying to churn out new cells over and over and over for years.
I wish I had a better answer, and you’ll probably get various well-meaning recommendations to eat things that are proposed to be super-healthy (and probably taste that way), but there’s no quick fix. The main remedy is just time off of chemo to recover the counts over longer than would be required in someone who hasn’t been on a lot of prior therapy.