You can ask the Kurt to appoint a lawyer to defend your interests.
You didn't reveal your state, but in this case the various revocation processes are similar.
So appear, say nothing about the charges, politely ask for a public defender.
Whatever you do, don't explain or say anything, except I respectfully request a lawyer, and without one I wish to remain silent.
They're not interested in excuses.
By the way, these days in many states, if you're revoked, after a successful period of probation, confinement isn't that long, even f they revoke you. Not a guarantee, just an observation.