Hun, over the next few months, she will probably start to reduce the number of feeds she has, and certainly the feeds will get shorter. However it is also fine for her to have solids and water instead of breastmilk on occassion when you want/need to. Another option is to express some breastmilk and have that in the freezer for someone else to give her while you go out.

You are doing a great job. It is normal to feel tired and restricted at times. In the next little while your little girl is going to start becoming more and more independent. This will give you some more space, but you will be facing a whole new set of challenges It's all good though

Hang in there