Hi Kaitlyn... Welcome to Anxiety Zone! My name is Chuck, and I am one of the Global Moderators here on the site.
You are now a member of our community, where you will find support and advice from other members in similar situations. It's always nice to find someone else who understands, and to know you're not alone.
We have sections in the forum that address specific concerns, so feel free to post or start a new topic in the section that best fits your situation. Feel free to explore the rest of the forum. You may find the other topics helpful, and you may be able to offer advice or support to someone else.
We also have a chat room for members over the age of 18. Once you have made three meaningful posts, you will be allowed access to the chat room.
Kaitlyn, Zoloft is a very good anti-depressant. You are on a therapeutic dose at 100 mg, however, many individuals, especially those with anxiety disorders, may require even a higher dose to achieve good results. I would suggest that you talk to your doctor about increasing the dose, and see how that works for you. If it don't help, you might just need to switch anti-depressants.
You might also wish to check and see if your community offers some mental health services for free, or at least on a sliding scale form of payment. Therapy, such as cognitive behavioral therapy (CBT) can often times be as effective as medications. I have just started learning CBT.
Again, welcome to Anxiety Zone. I am so glad that you are here on the forum, as you will find people that really understand what you are going through.
The very best to you, Kaitlyn!... Chuck