I think that you have some hope in that you do report less discomfort during hookups. Probably because you are not at all invested and do not fear anything because this man you are hooking up with won't be a regular presence in your life, you dare to do things you won't do with boyfriends. Your hookups seem to be what in software development is called a staging environment, where you try things out before you you release them into real life (called "production" environment). That you have found that ability is great, with the obvious mention ox safety both in terms of STIs and drugs (drugs since you mentioned that the hookups are impulsive).