A hair weave is a general term used to describe human or artificial hair for the weaving with one�s natural hair.

Weaving additional human or synthetic hair pieces can enhance one's hair by giving it volume, length and adding color without the damage of chemicals or adopting a different hair texture than that of their own.

Wearing a pony tail or tight weave would be harmful to your hair and increase your thinning. 

The grow new hair hot oil treatment, vinegar rinse would be helpful.

Here are links to them-

https://justnutritive.com/hot-oil-grow-hair-formula-grow-new-hair/

https://justnutritive.com/vinegar-nutritive-rinse-cleanser-grow-new-hair/