Acres
The probability of you existing right now are roughly 1 in 10^^2,685,000^ that’s 10 with 2,685,000 zeros behind it. So basically 0.
Nearly all the stars visible in the sky are within 5,000 light years of us. Main-sequence stars have a lifespan on the order of billions of years, so the chances are excellent that the star is still there, and still able to grant your wish. Unless you were wishing on M31, which is 2.5 million light years away, in which case you’re actually wishing on 400 billion stars, again, most of which are main-sequence stars and almost certainly still there. So chin up!