As i see you have thin hair and my answer will be about the thin hair part only to give you some ideas and tips about thin and thinning hair.
First you need to decide if your hair is thin naturally or it became thin. Take a look at your parents, what kind of hair do they have, check your childhood pictures, if you had thin hair all the time it means that you have naturally thin hair.
If your hair became thin >
In this case thinness is a temporal hair condition. It happens if hair do not receive proper nutrition because of stress, too often hair coloring, waving with chemicals because of too hard water and lack of zinc
If your hair is naturally thin >
if mother nature rewarded you with thin hair and you do not like it, there are two ways to take care of it. First – proper hair care that will not let your thin hair become even thinner.
The article is too long to post all information here, so i advice you to read the article from the web page you will see in the source below
Hope this can help for the thin hair part of your question