Getting and staying turned on without porn or masturbating

I just got my first aneros. So far I haven’t been able to get anywhere, I mostly just lay and clench the muscles am with very little sensation. From the sound of it it seems like I need to be turned on before starting but shouldn’t masturbate or use porn. For the time I was turned on when I started, I ended up just being in meditative state and relaxed (and not turned on any more) as I focused on my breathing, muscles and body sensations.

Any advice would be great