how can i do If my circular saw is getting caught in red oak while cutting

Let’s guess here, when you write “circular saw” you mean a skilsaw rather than a table saw. Let’s guess your saw is bogging down on a rip rather than crosscut. Oak is tough stuff and you need a good sharp carbide rip blade rather than the combination blade that usually comes with skilsaws.
It is possible your blade is dull. You could also be using the wring kind of blade. Using a high-tooth-count blade to rip hardwoods can be problematic. If your material is wet, or thick, you should slow down the feed to reduce the load on the saw. You might try backing the blade out half way, and making two passes for the cut.

But if the blade is getting “caught,” this leads me to believe you are ripping down the length of the grain, and the cut is relieving stress in the board, causing the cut pieces to move toward each other and grabbing the rear part of the blade (the non cutting edge) by closing in and pinching it. This happens sometimes due to the nature of the wood (and it can go the other way, with the pieces straining apart; you’ll make the cut most of the way and, with about 1/3 or a 1/4 of the distance left, the board will suddenly split in two where the grain wants, if not necessarily where you would have cut it. )
Rip blades have more set and fewer teeth than combination or crosscut blades. Also make sure the kerf is not squeezing down on the blade. If it is, a small wooden wedge in the kerf will help keep it open. Check that your blade is really parallel to the edge of the baseplate. If the blade is catty corner, it cuts a wider kerf than necessary and bogs down.