The Torah permits a person to annul his vows with the assistance of a chacham or beis din. One method of annulling a vow is by finding a “pesach,” literally an opening.

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All of Vows and Oaths Annulling Future Vows Annulling Vows Based on New Circumstances Annulling Vows on Shabbos Annulling Your Own Vow Default Length of Nezirus Giving a Dowry Despite a Vow Hataras Nedarim With General Regret Husband Annulling Wife's Vows Intending to Sin Without Sinning Leftover Meat After a Vow Nazir Olam Nazir Shimshon Neder Versus Shevuah Nezirus Nowadays Oath Before Yom Kippur to Eat Less Oath Not to Sleep for Three Days Oaths Over Land and Attached Produce Promises Made to a Dying Person Repeating a Statement Twice as an Oath Saying Bli Neder Time Limit for Annulling Vows Unusual Wording of a Nazir Vow Vague Vows to Donate to Hekdesh Vow Against Eating Meat Vow Conditional on a Gift Vow on Exchanged Items Vow to Move to Eretz Yisrael