Need help before begin manipulate

For the led i want leds to be independent not in strips.

The WS2812 strips can be cut into individual LEDs ("pixels"), with a pair of scissors, and rewired how ever you like. Once you do a bit of research and find out what it takes to control 50 individual RGB LEDs you may reconsider.

You have a lot of parts, there. Learn to work with each part by itself.