Hi. So, first Zoloft is a medication you must take for awhile for it to work. 6 to 8 weeks is when you should have therapeutic effect and hopefully feel better. Side effects happen and there are some that are only in the beginning called transient side effects. They usually get less and less as you stay on it and gone by 6 weeks. Insomnia could be part of that. Time will tell. You are on a very low dose though. It will typically take a higher dose to really treat it. Is your doctor planning to increase the dose?
I had to try many different antidepressant medications before finding one that worked for me.
That seems to be typical. It's not a case of one medication works for everyone; it's a case of there are a lot of different antidepressant medications out there, each one works well for a subset of the population. There's no way of knowing which one will work well for any particular person, other than to try them all one by one.
There are some general guidelines which can help in choosing which antidepressant medication to try next, based on how well the previous ones tried worked or did not work.
One may need to try several different antidepressant medications before finding the one that works for them.
It can be an agonizingly long process, but it's worth it when one finds the antidepressant medication that works for them.
A general practitioner can try some initial antidepressant medications. Eventually they may recommend a psychiatrist doctor if none of the initial medications help. The psychiatrist specializes in guessing which medication to try next.
In the meantime, it's typical the first few medications tried don't really work, or may just have annoying side effects, or even intolerable side effects, such as insomnia, or more often being tired all the time. Either one can happen. (One med kept me awake like drinking 20 cups of coffee. The same med put my mother to sleep for 18 hours.)
Keep hope that there's a medication out there that will work wonders, and keep searching for it, and understand it's normal for any particular one not to work for everyone. Each one works for some. One out there will likely work well for you. You'll know when you find it. (I can't explain how you'll know. I can't explain how I knew, I just knew.)
My present experience with an antidepressant is with Celexa. Recently suffered a breakup with a man . He broke up with me. We spent ten years together Ten years together and he decides we're incompatible. My primary increased my Celexa (generic) from 20 to 30 mgs. Just started taking the increased dosage this morning Too soon to tell if I'll feel any better. OTOH sometimes the med is right but the wrong dose. Good luck to you.