Most religious orders do not like to take women who have any history of depresssion or have ever been on anti-depressants. There are some exceptions but they are few and far between. But I would think that since they are so strict with the depression thing, a suicide attempt would definitely be an obstacle they wouldn’t be willing to overlook.
But it also depends on the order. If you want a traditional, habited order, they are way more strict and selective about who they will let in. I want to go to an order with a habit myself, but I have to say our non-habited sisters seem to exercise more compassion and understanding about people’s backgrounds-maybe because they are in the world more or they work more in social services. Who knows.
In any case, good luck. There can be all sorts of bars to the priesthood/religious life. I think if a man has paritcipated in an abortion, he cannot become a priest unless he receives permission from the Vatican. For women who are lesbians, they are not supposed to enter religious life but some orders do make exceptions. If you think about it, with women it is all emotional—so I often wonder, how do female religious view their vow of chastity vs men viewing their vow of chastity? (That might be a discussion for a different thread.)