I tend to play a lot here so sometimes a game I play before is lost in like 6 pages of archive games, is there a feature that will allow me to save those games so I can see them later on?
Go to a game you like (by clicking on it) and move your mouse over the date at the top left. A star will appear. By clicking on the star the game will be added to your bookmarks. You will be able to see those games at lichess.org/@/nabucodonosor2/bookmark