In dreams, a snake in symbolizes regeneration, rebirth, transformation, but also someone who resembles the behavior of a snake (a person who pursues you, stalks you, or is addicted to you.) A frog, on the other hand, in this specific dream symbolizes sacrifice or prey.
You may feel helpless, vulnerable, or powerless in your waking life. There is something (I would rather say someone) that is causing you these feelings. It could be a person who makes you less than you really are.
I recommend reading this article: https://365daysofpositivity.com/dream-about-snake-eating-frog-dream-symbolism-meaning/