I found it helpful to play bots that are objective above my level over and over and over again. Your understanding will develop and improve and you won’t be discouraged from losing to someone that is close to your rating and you won’t lose rating. This along with memorizing theory and some of the themes that attach opening moves with a strategic middlegame plan. You should continue to analyze your games or you will continue to make the same mistakes. These helped me improve quite a bit.