Well done. It’s not bragging, IMHO. Earning income because of value you provided to a market is completely honorable. My advise (just in case you care) is what I learned from the Bible: one, never fall in love with earning wealth; two, never depend on having a lot of wealth; three, always save some of it; and four, consider it a blessing to be able to give some if it away.
When I get my degree in Virology, I will be giving back by working on those diesases that kill people and curing something.