Praise is a surprisingly good motivator which makes it strange that so few people use it. It’s essentially infinite & costs nothing. Of course, like any resource, you do have to know how to use it to get the most out of it. You can’t just firehose praise & expect it to work properly. A person will develop a resistance to it if they receive it perpetually.
My favorite form of praise is cash. Although I do like verbal praise too. You can give both to me on Patreon! (or subscribestar, but let’s face it Patreon is the market leader at the moment.)
The best managers I worked for were experts at using praise effectively. Reprimands often came with some praise to take the sting out & keep the employee motivated & invested. It’s important to recognize failings, but also praise strengths. Give it a try sometime & see if you can improve things.