How can I take better care of myself?

i lost my dad 6 years ago since then i have not cared about my health.

some times i dont clean my face or brush my teeth in months my teeth are yellow & i have a cavity & i have tartar on my botton teeth i dont like dentists.

also at times i dont wash myself in weeks.

i just dont care about my health.

How can I take better care of myself?
Post Opinion