I am a psychologist and herbal medicine practitioner, Let us work on hour situation psychologically.

Hi, you can consult a psychiatrist. Consult online

Hi, how are you holding up today? Pushing yourself every day and still feeling defeated is draining, and it's a good sign that you're reaching out for help. Either professional is a fair starting point. A clinical psychologist offers talk therapy and assessment, and is a good first choice if you want to understand the patterns behind the demotivation and build coping skills. A psychiatrist is a medical doctor who can diagnose and prescribe medication, and is worth seeing if the low mood is affecting your sleep, appetite, or energy, or if it keeps growing. Since this has been building for 3 to 4 weeks, many people do both: therapy for the roots, and a psychiatrist if symptoms are heavy. What's worth exploring is what changed around the time this started, and why effort no longer seems to translate into results. Helplessness often has a story behind it, and it becomes much lighter once it's named. A therapy session can be a good first step, and a therapist can also tell you whether a psychiatrist should be involved.

It can be state of general fatigue or low self esteem or may be environment effect. Start with counseling, where your issues can be identified and addressed.  I need lot of information to analyse and suggest remedy.