Please read the advice for new guys sticky and the one called protocol for injections.
Your inability to absorb transdermal T could be indicating a thyroid issue.
Did you have LH/FSH tested before TRT? So you know if primary or secondary hypogonadism? Given your history, I think that you are primary from a blow to the head.
Post all of your lab work here with ranges.
Don't give your self permission to mess with higher doses and you also should not be doing 200mg a week even if your doctor does not know better.