I agree with Dustbunny- and with Pinki!
Your pole looks like it is likely an X-pole knockoff. They can be quite dangerous, and as you progress in pole dancing, I would suggest looking into a properly branded pole. Without a pole that has appropriate support and strength, you could be seriously injured!
As for doing spins... well, no, they aren't "beginner stuff." Spins place a lot of strain on your shoulders and arms, and without the appropriate strength and engagement, you can end up pulling something, injured, and very sadly unable to pole dance for a while!
Starting slowly, and being careful to train for strength and learn how to engage your muscles correctly, can make all the difference!
As for sticking too much to the pole, well... do you know if the people on Youtube are on a spinning pole, or a static pole? Sticking can be extremely helpful on a spinning pole, but on a static pole, it can be difficult.
Otherwise, how long have those people been pole dancing? There's something we call "newbie grip," which is often where you'll grip too hard on the pole, because of a variety of factors- your grip strength may be lacking so you overcompensate, and you may not know exactly how to grip so you may also overcompensate. Pole dancing is difficult, and gripping too hard is fairly common in the beginning! And a lot of those pole dancers you see on Youtube have been doing those spins for ages- months or years! Of course they'll be gliding gracefully after so much practice. You've only just begun!
Warming up the pole is something people do in order to make it more grippy- usually, using the pole will warm it, so the metal will become stickier. This is often desired for the winter, and in certain climates, and with certain finishes. However, over-stickiness can also be a problem ;)
I would suggest just practicing carefully, and being gentle and accepting with yourself.