Ahsan allahu ilaykum If i have no shaykh and im exclusively seeking knowledge on this website, should i also read books with sharh of uthaymeen, saleh al fawsan, etc. on the side since i have a copy of wasitiyyah and ajroomyyah with uthaymeen sharh. if so, how should i divide the learning?

Yes, you can read some explanations of the people of Ilm on the side as you said, or even watch some of the explanations that we have on Garden of Ilm, as they are beneficial as well. However, what you have mentioned in regards to Al-Aqeedah Al-Wasitityah for Imam Ibn Uthaymeen is difficult, and I do not recommend that you start with this now. But if it is for Shaykh Salih Al-Fawzan, then yes, you can do so.