Hello i have 2 Tickets of Betcoin.ag of 250 GTD but i never played any game like poker can someone help me by proving a tutorial how to bet in poker and literally how to play. I am quite shameful by making this thread

but the tickets are calling me use them

Of course you should learn basics first like many posters in this thread have said already. After that you can start playing and here's my advice: you should never go ALL IN unless you are 100% sure no one has better combination than you. Probabaly doing so you won't win big but at least you'll have a chance to stay long enough to qualify for a prize, not the biggest one but a prize instead of losing all early.
It still not a gurantee, let me ask you if you got pairs of ace. Will you all in? Because there is still a chance that people might beat you using lower straight so to all in instead of playing slowly I dont think that it might be good option. Unless you are really guarantee that you will win but we never know about the future so we cant predict who is gonna win