I graduated from my degree earlier in the year and decided to test the waters with a job from one of my majors (writing). Had 2 horrible experiences which led me to leaving both those jobs after 2 months which greatly affected my mental health and have started a new job for about a week now. 

I've been struggling in this job not cuz of the job itself but more of my mental health, self doubt and insecurity. I feel anxious all the time when it comes to work and I always feel short of breath.

My initial plan was always to do my Masters in Professional Counselling (Psych was my other major) as I've always been drawn to helping others. With COVID and online classes, it prompted me to test the waters this year instead of jumping straight into my masters. 

I figured I could do a job for about a year before furthering my studies but now I feel like the path I've taken is really not of my liking and that I should revert back to my main plan. 

My mind is just all over the place as I don't know if I'm making the right decision if I were to leave this job I had just taken after 3 months as that is when the next intake would be for masters. How would my boss and the company feel about this? Would I leave a bad mark? I just have a whole lot of intrusive thoughts and can't help but feel like I've failed somehow by opting out of work after 3 months, but at the same time would wanna continue on my main path as soon as possible. 

Despite the people and environment in this present job being okay, I can't help but feel a form of regret for joining them as I felt like I should've taken more time to deal with my own mental health. I just keep feeling like every move I make, it's the wrong one.

Am I just overthinking this? Could really use some advice and perspective.