Couple suggestions : "even put little gas in sparkplug hole" not a good idea to do this, as you are in a new learning curve 2 stroke engines are very simple, yet can easily have running problems. With new 2 stroke engine operators it's easy to flood an engine. If your engine was running good then started running poor it's about guaranteed to be a fouled spark plug and incorrect carb settings. Striikar posted great advice. When things go bad with your engine just stop and correct things one step at a time. Step 1 get the engine internals completely purged of all excessive fuel and oil. If your sparkplug is black and oily it needs to be replaced. So a "dry" internal engine, a new spark plug and correct suggested baseline carb settings your engine should start. Keep in mind carb tuning takes a lot of time to learn, and you need to listen very closely to how the engine sounds while making adjustments. Good luck and hope you get it sorted out ! I've been wrenching and tuning 2 stroke engines for 35+ years, and I STILL occasionally flood engines ! It's the nature of the beast with 2 stroke engines