You truly don't want your corn snake to be 98.6* F or over our body temperature (about 37* C), which is what it would take for them to feel
"warm" to you, and keep that in mind when you handle a corn snake too: their restlessness may be a sign they are getting too hot & want
(need) to move away from you- it's "nothing personal". This is especially true the smaller a corn snake is...hatchlings over-heat faster than a large adult.
With a heat mat (UTH) that covers a third or fourth of her viv, I'd lower the temperature of the heat mat to 26-27* C (about 80*). A wood viv
is going to retain more warmth than a glass tank will...you might see her using her heat mat more if it's a bit lower.