I feel like a failure

I'm 27 and a working professional. Here goes my backstory and why I'm here on this app.

I've always try to put my best foot forward in order to gain the right set of skills as an Engineer. I was extremely passionate and dedicated throughout out my undergraduation. Fortunately/unfortunately I landed myself a job role as Sales Engineer in a big firm. Now, I was never passionate about applying my skills into sales and business but at the time it was the best opportunity I could avail and I decided to go ahead with it. Little did I know that my life was gonna change forever. I was paid very little for a lot of hardwork, it was taking a toll on my self confidence. Although I was developing as a professional I never had a sense of accomplishment and very soon anxiety creeped in. I decided that I needed to move to a more technical role cause I wanted to spend early days of my career into hardcore engineering. I decided, I'd pursue masters which would provide me with an opportunity of my liking.

It's been 5 years now that I have worked as a Technical Sales Engineer. I've moved up the ranks in the industry (still little pay)While I've earned a lot of respect among my peers and company, I still haven't found my kick. And it is taking a huge toll on my relationship, work and confidence. I really want to pursue master in my choice of subject but now I'm not sure if I will succeed after the post graduation. I don't know how things will turn out. I don't know how do i calm myself. I've had 2 failed relationship in 3 years and things are even worse with family. I have a mother who is bipolar and divorcee. A brother who doesn't give a shit about others. I often think about my father, not that I care but maybe I wouldn't have anxiety issues if he was there.

I feel lost with my own thoughts, I feel I've a lack of vision. But, whom do i approach, How do I improve myself. I always end up being with a wrong person or maybe it was always me who couldn't handle them. I don't have a sense of direction. How do I let all these negative attitude out of my mind.

I'm worried that if I don't make my to master's course this year. I'll have to go through another year of depression and anxiety.

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