I highly recommend leveling not only basic, but also secondary professions, as with the help of first aid you can create bandages (you can restore health during combat), and with the help of cooking you can create food that will give you positive effects. There are many vanilla wow professions
so you have a lot to choose from but make sure it suits your class. Usually, fishing is leveled alongside cooking, because in the recipes of many consumables there is fish and seafood. Just a helpful tip I got from a person who helped boost me.