QE
Congratulations on coming out to your brother and sister in law. Really pleased that they were both so supportive. The first time that you come out to someone whose opinion is important to you it is a very big deal and a significant step. Afterwards you do tend to wonder why you stressed so much. The great thing is that now you can be authentic and share your thoughts, dreams and concerns with them. This is a big deal. You won't feel as isolated, and talking with them will help you process and articulate your thoughts.
Safe travels
Aisla