Im interested in salvia, can you share your stories with me?

I've been interested in trying psychedelics for a very long time now but i simply do not have the time for LSD, shrooms or DXM (i am a junior in highschool with 3 jobs)

I have been genuinely interested in experiensing salvia for a while now but i am not so familiar with it, so allow me to explain to you what i know and would like to know.

What i know so far is that salvia is legal(?) and sold in head shops.

it is sold by the gram and the intensity

and is typically between $15-$25 for a gram or two.

The experience i was told lasts around 20-30 minutes

And that it can be very powerful sometimes.

What i would like to know: is my information correct?

What else are important things i should know before smoking it?

Are there health risks? (aside from smoke.)

Does it damage the brain significantly?

What does the after effect feel like? (slow, and tired?/happy and light?)

Should i do it alone? Should i do it with a sitter?

Is it okay if im alone?

Are there certain companies which i should buy the salvia from as opposed to some that i shouldnt?