You definitely need some legal help. If you can't afford an attorney, call the legal resource center of the L.A. Gay and Lesbian Center at 323 993-7670, or you can email them at
legalservices@laglc.org. Under no circumstances should you plead guilty without first consulting a legal professional. Pleading guilty without some sort prior agreement among the prosecutor, defense and court could result in your having to register as a sex offender. You don't want that. Good luck.