Small lump near nipple

Hello! I’m 19f and a few weeks ago I noticed a little lump, firm and pretty small just near my right nipple. I got a doctor’s appointment but it’s on the 12th of august, it’s currently the middle of the night and i’m freaking out about it, and considering calling to book it faster. I think the first time I noticed the bump I squeezed it very hard and a clear-ish liquid came out. I can’t tell if it grew over the past week. I have very bad health anxiety and I’m not sure if i can trust my own memories.
Thanks for any advice or reassurance!