Expressing colostrum to save

At 36-37 weeks I want to start hand expressing my colostrum to put into syringes to freeze. I am going to be talking to my doctor about it. I’m very low risk and have had no issues this pregnancy or with my first born. I’ve done a lot of research already so I know the risks and the benefits. I’m just wondering if anyone here has done it and has it helped you and your child? Was it worth doing? Did it help with your milk supply? Also, were you able to use them in the hospital if you needed?