craked screen need help

On the bottom right corner of my screen where the back arrow key is at ,is cracked over it.I have to do one thing at a time than rebot to do some thing different.I went to go get fixed,but they said they don't mess with these blu phones.NEED HELP

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0