Great to know you've got resources!
You may not 'need' to see a therapist to begin HRT, etc; however, in all good consciousness I really recommend you see one so you have a professional who has your mental and behavioral well-being as their top priority.
I'm not being the least bit critical and am very happy you've got support

The accepted standards of care for trans-people includes counseling. Hope this is helpful.
Great news and take good care,
R