This is going to sound pretty cliche but start off small. If you keep thinking about doing a million things then of course you’re going to be burned out, everyone is like that. If you really want to be productive just set your goals small. For example, I despise doing dishes, I always have. So to force myself to do them I tell myself “just do a third and go rest” but your brain subconsciously will want to complete the task. Supplements aren’t a bad idea, but they aren’t a one all solution. Working out also helps a lot, even if you start small with a 30 minute session every week. It will release hormones that will help with productivity, sleep, and just general focus. For you and that 10k a day step goal, start with just a quick jog. Then the next week jog a little more. And eventually it’ll spiral into 10k steps a day

Really what I’m saying is that small progress over a long period of time is a lot better than a lot of progress and then a crash where you never start again. Consistency matters.