Comedown from ADHD Medicine

I was diagnosed with ADHD as a 23 year old who is just entering the workforce. I have been taking 10mg adderall for about 4 months now, and it has changed my life completely. Like many of you, I feel more present and so much more capable and competent at work. Lately (past month or so), the comedown from the medicine after work has made taking it almost not worth it.

After 4/5pm (I usually take it around 10am), I begin to feel gray and slightly down, as well as a large bout of anxiety. It makes it hard to focus on what I need to knock out at night, and really makes me not want to do anything at all and feel pretty down about myself.

Is this a normal reaction after taking it for a few months? I would be so grateful on some Tips to manage this, whether it be starting my dose later in the day, eating more when I am on it, or different things to try to make the come down a little more manageable. Any and all thoughts and advice are greatly, greatly appreciated.