antidepressants?

hi everyone, i honestly feel like im at a breaking point lately and im not sure what to do. first off i am a single 22 year old mom to a 1.5 year old little girl, im also a full time nursing student. i was so excited to go back to school to give my daughter and i a better life but everything has been so overwhelming lately. i had to take 8 classes at once and they aren’t easy classes! i feel like all i do is study and im not even retaining the information because of how stressed i am. my daughter started at a home daycare 3 months ago, which was going great but she started making comments about if she doesn’t start doing this that etc. she’ll have to get rid of my daughter. being a full time student and single mom i had to make the decision to move daycares to a more stable environment- a centre, where she starts on monday. my daughter did not adjust easy to the first one and now i feel like were forced to start all over again. all the stress from school has made me so much more irritable and this on top of my daughter hitting extreme terrible twos early (im talking hitting, tantrums non stop) i feel like im in a vicious cycle of getting frustrated with her and then feeling like a horrible mom after. i have 0 help and some days it really gets to me, im considering antidepressants but not sure if it would work because im not constantly depressed? ill have a few weeks of very bad depression followed by a few great weeks. has anyone ever had an experience like this and did you try antidepressants?