I play the shot as I find it. Glib I know, but in the event that things haven't gone well I generally try to forget the last shot and concentrate on how the next shot is best played. If that means there is the opportunity to go for it then I will. I'm not, naturally, and aggressive player so won't attack the pin unnecessarily so would stick to my game as much as possible.
I think the mistake that most people make when things are going wrong is to try and switch things around. I do it and im trying to stop myself from doing it in the future. Stick to your routine and what you know is probably the best way. Dont take any daft risks either trying to make up for errors previously (something else i sometimes do!)
Seriously though, if I am having a mare, I try to concentrate on just making the next shot as good as I can possibly make it and take it from there. Try to forget what has happened and what may happen in the future and focus on the next shot only.
I start to blame young people with battery powered trolleys, GPS, white trousers, white belts, people with dirty whit shoes, those talking on their phones, seniors, ladies and anything else that could annoy you on the course.......
No being serious though.... I just stick with it. Sometimes you just have to accept that it is going bad and you can't put a swing on the ball, these days do happen. Do not start trying to change everything as I am sure the last 5 rounds have been perfectly good. These days do happen, that is why you see tour pros carding scores in the 80's sometimes.
It varies with me, sometimes i just forget the bad holes i've played and try and play the next hole as well as i can; other times, i get really angry and quietly shout at myself and swing my club furiously through the air. I find the first method works best though
Get angry and implode.
Many a times in the course I end up beating myself. For a high handicapper I have stupidly high expectations and if it doesn't work how I visualise it I get a bit disheartened and if I go 3off the tee I find I am then trying to play catch up and hitting things harder when I know I should be swinging easy and letting my club do the work.
Of course the answer is to slow down, trust the swing and not over-analyse.
Not so easy when, after 3 putting the first, you get angry and have a wild slash with an 8-iron off the second, which you Sh-sh-sherman into playing your partners trolley wheel and watch, agonised, as the ball rebounds into the rough behind the tee.
(This may or may not have happened to me on Sunday.)
Throw clubs, blame slow play, blame the course, cry, snap the odd shaft or two, vow to never play again, walk in, cry some more, think about getting new clubs.... buy some and come out smiling ready to play sh*t again next time
I was three down after 7 holes yesterday and not playing well. I took a deep breath, swung a smooth 6 iron to a par three that I can hit with a 7 and four pars later seemed back to normal. I won 3 and 2.
If not playing well , i always go with one extra club. Seems to work most times for me.
I usually find things go bad because I am not playing "naturally".
The best cure for me is usually to ensure I do some practice swings before a shot. Normally when I am playing naturally I just swing away to feel a shot. When its going wrong I take my time a little more.
My normal routine ensures techincal stuff does not get in the way of feel and is the same as when I am practicing feel shots on the range, my backup longer routine is the same as my technical pre shot routine on the range.
I know both routines well so neither feel out of place, one is just quicker and yields better results under pressure.
If I do switch to my technical routine I also avoid any hazard carries and play safe, I then rely on my good (V-easy based) short game to save me (which I generally has to do anyway).
I just club down and try to just get some good strikes out slowing my swing down, then work my way up this normaly works, done this the other day and was playing really bad from then 13 - 18 got two pars and four bogeys. Was happy with that (apart from missing a short putt to make it three and three)
When it happens, I'll treat the rest of the round as practice, forget scoring, and also treat each hole as a completely different game. Every time you step on the tee box it's a new opportunity to play some good shots and ignore the previous ones.