I have recently become interested in wines. I've done a lot of reading to find out about the different varietals. Finally, I decided to give it a shot. I tried three different wines of three different labels -- a merlot, a pinot noir, and a chardonnay. Each struck me with an extreme bitterness that was worse than the worst medicine I remember as a kid! My wife has experience with wine and said she didn't notice any bitterness. Is the bitterness something you get used to with experience? At this moment, I can't imagine ever enjoying the stuff. Any advice?