How to replace left button switch and what switches are good?

I have this mouse for 5 years now, with the exception of a double clicking problems on the left main button, it is working as the day i bought it, can someone help me?

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

crwdns2934109:0crwdne2934109:0

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