What are ways to avoid masturbation?

Imagine Trump naked. If that doesn't kill your libido, nothing will.

Selective serotonin reuptake inhibitors (SSRIs) like Lexapro and Prozac can decimate your sex drive.

You do realize that masturbation is healthy, especially as you get older, right?

Why would you want to avoid masturbation? It won't hurt you or anyone else. It won't prevent you from reproducing if you chose to do so. It isn't illegal. It isn't immoral. It isn't a sin. 
It is a biological function, like breathing or going to the bathroom. It is a body function that God gave to you. 

keeping you hands out of your drawers

Wear boxing gloves to bed the type with sewn in thumbs.... Problem solved

the best way to solve your problems is to talk to Jesus about them; pour out your frustrations, failures, and desires to do His will but your inability to do that. At some point, hopefully, you get more of a sense that we overcome only through His power, by His grace, and with His support.

ONLY BY THE GRACE OF JESUS  CAN WE AVOID SINS.

OBTAIN SPECIAL GRACES WHEN YOU CONFESS YOUR SINS WITH A HUMBLE AND SINCERE HEART. THEN RECEIVE HIS BODY AND BLOOD AT HOLY COMMUNION, FOR IT IS IN IT THAT WE HAVE THE GREATEST STRENGTH TO AVOID SINS. ALONG WITH DAILY ROSARY. IT IS NOT DONE OVER NIGHT BUT WITH IN A VERY SHORT TIME, JESUS WILL HAVE TO FREED FROM THE SLAVERY OF SINS.

"COME TO ME ALL YOU WHO LABOR AND ARE BURDENED AND I WILL GIVE YOU REST"

"THOUGH YOUR SINS BE AS SCARLET, I SHALL MAKE THEM WHITE AS SNOW"    SAYS THE LORD OUR GOD, JESUS.

deliverance in the Name of Jesus Christ. its caused by evil spirits that can be cast out (removed) from a person . look on youtube. yup we must obey all Jesus commands to enter Heaven.

Understand that such behavior is personally demeaning, wastes valuable time and is offensive to God. Make up your mind to quit (with the help of God's grace) and then, try to stay busy with other, more profitable endeavors. If you backslide, start over and try again.