I know the basics, but I end up falling after 2-3 steps. Can anyone help me?

Watch the MOFF tutorial on youtube. With it you can prolly do a fair 6 steps w/o falling, just follow the stepc closely

Running isn't about tutorials. It's about practise.
Work on your balance.

Make ur own opener to run and move ur pecs, chest and elbows.

Just keep doing new movements and do some interesting stuff
don't just stick to what tuttorials say to you

devolep you're own unique style ;)

Lean foward and place your legs infront of you to keep from falling