Hi Jessem... Welcome to Anxiety Zone. My name is Chuck, and I am one of the Global Moderators here on the site.
I thought that it was best to point out to you that 25 mg of Zoloft is considered a sub-therapeutic dose, and not really effective to treat anxiety and/or depressive disorders. Quite honestly, there are a lot of doctors out there that don't really understand just how anti-depressants work. They don't have anything to do with changing your brain's chemistry. What they do is to encourage the growth of new brain cells and their connections, in the hippocampus region of the brain. Brain cells in this area can become damaged or destroyed be stress chemicals such as cortisol. That is why anti-depressants take so long to work. It takes time to grow new brain cells.
I see a psychiatrist for my mental health need. Psychiatrists are medical doctors, and they specialize in anxiety and depressive disorders. They are the experts in anti-depressant therapy, and mine prescribes all of my anti-depressant medication.
You might want to consider seeing a psychiatrist, or at least discussing this matter with your current physician.
Again, welcome to Anxiety Zone, Jessem. The very best to you!... Chuck