well no the tingling basically means you're going into SP just don't move a muscle though even when in sleep paralysis tons of people can still move it's just a little more difficult

once you start seeing things just wait and slightly acknowledge them don't be to interested and force it to stay because of course it will just leave
it just takes time and depending on weather you're a natural or not it will take practice

Don't have to visualise it will come to you by itself although if it doesn't yes you can visualize and it could work out just make sure you think of detail not just some random things

(i'm no expert just read around)