As the above says start off doing day hikes with a light backpack. What is the killer for overnight hikes is a too heavy backpack. Weigh the backpack before you leave the house.
Hiking a long distance can be challenging even without a backpack for beginners. Add the backpack and hear the whining.
Dried foods weigh less. Add water and boil. Get a white gas stove or gas stove. Think what you have to bring. Make a checklist. And if you do an overnighter start off with a short distance hike. If you dayhike consider packing a lightweight tent(around 4 lbs) for emergencies. Get yourself a gps and know how to use it.You will have fun.
