Thank you for explaining. I somehow incorrectly assumed that you had been taking your medication for longer than the three weeks than you've been taking it for, so your explanation helps. I agree with the statement that was made in this thread that said that it can take six weeks (or sometimes longer) for the full therapeutic benefits of antidepressants to take effect, and I'd recommend giving the medication that you're taking longer to see if you might notice more beneficial effects with more time. It might still be the case that what you've been noticing as far as motivation has been concerned isn't something that your medication will help with, and looking into other approaches that might help you to feel more motivated (such as doing some of the things that another poster here suggested) would probably be worth looking into regardless as to how much your medication might eventually help with motivation. But it's also possible that once you move a few weeks farther into your antidepressant trial, your medication might help you in ways that it's not yet helping you with.

I wish you luck with your treatment as you go forward.