Recommendations for someone who hates bitter taste?

I’m turning the legal drinking age where I live this September and I’ve always hated the taste of bitter stuff. I’ve tried a sip of a few different types of alcohol – red and white wine, whiskey, and tequila – and was only able to handle the tequila because it was a jalapeño tequila and the spice cancelled out any bitterness that may have been present.

I hate bitter stuff so much that I can’t even drink coffee or teas. I literally only ever drink water, but I really want to have a good time on my birthday and get to trying things that might work for me.

Any recommendations for any drinks, mixed or store-bought?