Eat ibuprofen like it’s candy. Since it helps with swelling it will be especially effective for your headaches. If the congestion is so much that even inhaling a certain amount of steam doesn’t help, eat something spicy right before bed. It will clear out your sinuses. Even if you’re not hungry, remember to eat normally because your body needs that fuel to heal. AVOID DAIRY. Dairy products will congest even more and you will be almost unable to breathe or clear your nose out. Avoid really hot drinks and foods because they will hurt you more than normal.
Also, as gross as it sounds, gargle with warm salt water. I’ve never done it never been able to bring myself to do so but my mother absolutely swears by it. Ya know something? That woman knows how to recover from a cold.