Escape rooms are designed to be tricky, and there are often a lot of false leads and red herrings meant to keep your from winning. Doing everything by yourself will waste valuable time and probably annoy the rest of your group. Instead, try delegating different tasks or puzzles to various members of your group. You can work on things no one else seems to notice, or serve as a go-between for different parts of your group.
A good rule is to never simply watch someone else do something. Either help them if they need it, or go do something else. Remember, the clock is ticking.
This is critical if you’re ever going to escape. Treat every object and clue as important, and do your best to remember where every clue came from and what it’s used for. One helpful way to do this is to designate an equipment manager of sorts—someone who can take stock of objects, clues or other puzzles and recall the information when needed later.
Another organizational tip is to make a “used” and “unused” list. What clues or objects have you already seen through? Which ones haven’t you examined yet? This will save your from a lot of backtracking and time wasting later.