In order to stop the self-sabotage, have a look at the below four steps:

• get to know and understand why you feel the need to self-sabotage
• once you have identified that need, check out ways you can fill it without having to involve self-sabotage
• if you have already found the proper alternative, think about ways to identify and overcome possible obstacles
• build up tolerance when dealing with unpleasant feelings
• make sure you really know your values and goals