All answers are good. Go to the post office and have them hold your mail, but also, they have a special service that will forward your mail to you where ever you go in one package if you want that also. That way you won’t miss any.

Go to the Post office and request your mail be held, they will have you fill out a form for this.

Go to your local post office or ring it, and tell them you want them to hold your mail from ‘this date’ to ‘this date’ and when you get home you can go and pick it up. It is usually free of charge, but no guarantees.
good luck

Go to the post office in your area and ask if they could keep your mail and packages for you…….I think you need to pay for the storage duration.
Post offices have a storage area for such purposes.