Optimum wifi connectivity and strength question

[#1]

I have had WiFi since 01/01/2015, and have had this problem ever since then. Finally enough is enough, the wifi is so weak. And I do not live in a big house, its a 2 bedroom 1 floor decent size house. I notice when I am in my room, the connection is terrible (maybe 1 bar on the WIFI icon, 2 if I am lucky, sometimes nothing)

When I am using my cell phone, images, webpages, etc sometimes literally will not load. As soon as I turn off wifi it loads up. I never had this problem with optimum, Please help me figure this out, I am trying to avoud a phone call but this is a waste of a service i am paying for.

Thanks for your time and advice.

[#2]

Have you used the search feature on this forum?  There are lots of threads about improving WiFi performance.  Here's one that has been saved for all to see:

http://forums.verizon.com/t5/FiOS-Internet/Why-your-Wi-Fi-is-slow/td-p/534451

Good Luck.