Chess.com Tactics

Is it just me that finds some of these overly punishing?

On some of them I think my solution a few moves ahead and gain pieces but it's still the wrong solution. There's no middle ground, it's either right or wrong. What seems to be a perfectly good set of moves results in a -10. Yet when I get one right I only get a +7 or similar.

I've just had one that where the analysis showed a mate in 6 and I went with a solution that was a few points up in 2 or 3 moves instead.

Do I just need more "skillz"!?

The purpose of the exercise is to keep pushing you to find the best solution. Finding the second best solution isn't a consistently winning strategy in real games.

So every one really I should be analysing to see why my solution wasn't the best?

I think it's the time constraint that forces a solution. You find something, follow it through and it gives a win so you go with it. If you hold off to find another solution that gives a win but is better, you miss the target time and gain little points anyway.

Chess.com's penalties for missing are notorious for being too much and the minimized rewards for not finding the solution in 7 seconds, etc. are also ridiculous.  Additionally, chess.com played with their scoring algorithm last year, so it's hard to use your rating as a measure of improvement. I do most of my tactics problems elsewhere.