1. Do not plant from seed if you planting a perennial fruit tree. There are 2 types of fruit trees, the annual ones and the perennial ones. The annual ones bears fruits faster as in you will be harvesting in one year like a Papaya but the tree is dead after the harvest. Then there are the perennial trees that will provide you fruits for a lifetime like the citrus fruits (orange,lime,calamondin,Pomelo,grapefruit) and Stone fruits ( Avocado, cherry,plum,peach,and apricot). The fruits I mentioned will have an average of 10 to 15 years before they produce fruits, if you planted them as seeds. So if you are 8 years old and you have a lot of years to wait, go ahead plant from seeds but if you don't want to wait for a decade, purchase a propagated cutting of an old tree instead. An avocado cutting can give you fruits in few months but an Avocado seed is planted, you will wait for 10 to 15 years. If you don't have that patience like me, Buy cuttings because they can give you fruits faster.
2. A week before planting a tree, Herbicide the place. Kill all the possible invasive weeds that may steal nutrients from your tree. I remember how my apricot tree almost died because it was surrounded by some invasive vine which I believe is a wild cucumber. Pulling out weeds is not a fun process when it gets severe so poison the place a week before planting. The place will be safe to be planted again after a week.
3. Prune the tree so it won't grow tall. Pruning a tree is a process where at least once in few days you will cut some branches of the growing tree so it won't grow tall. Unless you have the athleticism and ability to climb trees, you don't want the tree to grow super tall so you will prune it so it will stay humble.
Harvesting in a 5 feet tall tree is more fun than trying to harvest fruits from a 20 feet tall tree.Fruit trees also tends to get more fruits because its easier for a shorter tree to get more nutrients from the soil and fertilizer.
Here is a footage of how to prune a tree so it wont turn into an overwhelming tower.
4. Put your seedling inside a cage on before it grows bark-

This will protect your aspiring tree from your pets, livestock , rats, heck even human children. I had experienced my ducks eating my lemon cutting, My dog digging my young peach tree seedling, my nephew pulling out my papaya seedling. Seedlings and young cuttings are very vulnerable when they are not yet taller than pets and children The cages are great protection.






