But i just create wallet for doge coin

Should i buy coin now?

Definitely. Buy doge, lose money, and then come and cry that crypto is a scam.
Man, it's up to you. DOGE bag holders will say "buy buy buy", but a rational person will say "are you f-ing kidding me?"
Straight forward! But that's reality, invest only if you are willing to take the risk, the hypes around this market can easily emptied
your pocket, once you decide to buy certain project you must understand that there are always other side of from your expectations.
Buy now if nd only if you are done with your homework, anticipating what would might the next market movement is very useful, though
with your first step, always back it up with good understanding.