Sooo I really need something that will make my hair grow better and get thicker.. I got glue in hair extensions and when taking them out half my Hair came with them ): I have little bald spots all over my hair... please help

Your hair is going to grow in as it always does, it is genetic and can't be changed. A good cut will make it seem healthier and thicker but that is illusionary. Unfortunately you are going to be stuck waiting for everything to grow to the same length.