Best to give the conventional treatments a go first, finasteride, dutasteride and minoxidil. Recent hair loss often leads to remarkable recoveries in responders. spironolactone and estradiol or extreme options if conventional treatments don't work but should not be your first line of attack.
It's not just breasts you have to worry about, liver toxicity, feminisation, impotence and sterilisation are also likely. It's a big sacrifice for hair. Only those who value hair above all else should consider spironolactone or estradiol, and then only after conventional treatments for at least one year.
It's by no means a certainty, but many people as bad or worse than you have made remarkable recoveries. Just have a look at the first page of the success stories sub forum for evidence