Stress, what can I do?

What can I do to treat my stress? My stress has been so bad the past year.. it’s affecting my body now. I get heart palpitations everyday, even when I’m not doing anything. Im tired of my heart feeling this way.. idk how I can treat it? (Going to the clinic to see what I can do this week)

- My ex-boyfriend is depressed & was threatening suicide, he’s now on antidepressants

- I have a 2 month old, trying to figure out co-parenting

- breakups

- my dad tried to kill himself

- my dads drug use, my mom being sad about my dad

- both of my grandpas having cancer

- finding my little sisters suicide note, seeing cuts on her arms

I’m not sure if it’s stress? anxiety? Depression? Of course I do feel depressed over my family and all I’ve been through.. I just don’t know if I’m even able to take anti-depressants? They make you drowsy and I have a baby to care for.