Struggling with Self-Care and Feeling Lost

I’m in a situation where I really don’t know what to do and all I want is the best for myself because I always focus on others best interests and never my own. I’ve kind of lost myself and I’m really trying. But I feel like the only way I can help myself is admit myself because the other option my husband is threatening to leave me for. Says he can’t trust me, basically trying to make me feel bad for wanting to help myself this way. (No, it’s not hurting myself) If anyone could message me and give me their opinion, I’ll go into more detail. But I really need some help because I can’t handle these emotions that come with this and need to talk it through with someone that’s not connected to the situation.