I've been in a similar spot when trying to trade skins, and hitting that 15-day trade cooldown can be a hassle. It's frustrating when you're ready to make a deal, but Steam's restrictions get in the way. When I couldn't do direct trades, I looked into trading bots or platforms, and it made the process smoother since they worked around some of those constraints.
If you're interested in streamlining trades, I've found valuable guides like this: https://skinsmonkey.com/blog/trading-cs2-skins-what-do-we-know-so-far. It sheds light on trading with the CS2 transition and staying ahead of trade trends.