I really have to agree that for you and what seems to be getting you down - not coping well with all the junky stuff happening in your life, it is probably best to start with talking to someone.
I know you have state ins, right? medicaid or something? They definitely cover that kind of stuff. I'd call right away...this is not a time to just go for an easy fix...and honestly, having been on meds for a large portion of my adult life (17-25), they really don't "work" - problems still exist, and you still need to learn how to cope better with whatever life throws your way. I didn't learn much until I decided I just felt dead inside on meds and couldn't ever see clearly (lots of different ones at diff times) and I got off and never looked back. They all have various side effects that truly change your body and how you may feel physically as well. They are not pleasant for most people...some don't experience side effects, but that doesn't mean they are not doing things to your body. Its been almost 4 years and life is so much clearer. I am feeling depressed again and its been a long while for me, actually, but I know its because of circumstances and I have faith that if I keep getting through day to day and try to get adequate rest, talk it out with dh or whoever I feel is best at the time, then this too will pass...and life will one day seem a bit brighter. Also, it wouldn't hurt to practice some breathing and figure out what helps YOU. Before you jump into meds.
Here's a story for you. When I first went on Zoloft, I didn't sleep for almost a week, I thought I went crazy hearing voices, and didn't eat for three weeks...a doctor kept telling me to wait it out. I switched to two other ones within a few months and lost weight I couldn't afford to and cried everyday, I felt HORRIBLE physically...I found one that worked for me, I won't name, and it helped me sleep, gain weight and keep it on, eat well, numbed my pain, and allowed me to laugh again. I thought life was lovely for awhile. Until I realized one night I couldn't sleep without it (ever) and realized my med was controlling my life, not me. Fine, until I started losing memories. Major memories, I couldn't recall, and still cannot recall many things...One day after I went off it, I got a letter saying I was getting a portion of the payout due to a case in court that proved the medication was at fault for damaging parts of the brain that recall memories/information. Lovely medicine that helped me for years...took so much more from me than I'll ever know. And I later received a check for $183. How nice of them.
Try something else first. For yourself and your kiddos. You can do this.