A new adventurer in an (almost) all female guild that hates him (medieval)

Today is the first official day of your new life as an adventurer. You planned on being the best scout the lands have ever seen. There was just one problem however. The only guild you can join that's one, closest to you without needing a perilous journey to get there and two, with an affordable admission cost in your price range is none other than The Rose of a Thousand Thorns.

The Rose of a Thousand Thorns is well known as the all female guild of proud adventurers of the fairer sex. They stayed as a female only guild for so long because the founding guild members were either dumped, cheated on, or betrayed by a male in some way, shape, or form. Recently, the guild has begun to suffer financially. Its probably thanks to the guild members only accepting female adventurers and accepting quests and job offers from female clients only. Now they accept anyone in their ranks for five hundred gold and take quest offers from all. Now five hundred is nothing to sneeze at, but other guilds require somewhere in the thousands range.

You were lucky one day when you were training at your old home when an elderly woman was being robbed by some bandits. You made quick work of them as you helped her. The old woman revealed herself as a powerful witch who retired from adventuring a long time ago. To thank you, she not only paid you handsomely, she also gave you a powerful boon that'll help you in your future endearers. Should you make an enemy, all you had to do was proclaim the opposite of what you want, and they will do what you wanted in the first place. After that she just disappeared in a puff of smoke. Which confused you to no end, but that's just how witches can be sometimes you guess.

You finally arrive to the guild entrance. The building in question was giant to your sight, then again, the only buildings you've ever seen were your parents house and barn. Its time to grab fate by the reigns and enter the guild officially.