1) You did get the CDP XPs, as them and the streak are now awarded with the first stroke of the game.
2) You are a grown up and self-responsible guy, aren't you? It's up to you to check the time left for any event you join. In case of a Clash, the clock is right before your eyes when you click to play - looks a tad rude to demand for more.
3) Your CC is nowhere near the top of the leaderboard, so why worry about the points missed?
4) It's but a game - enjoy it lightheartedly and have fun!