The original trade looks good to me, you have a reversal candle at support, with confirmation from bollinger and stochastic indicators. Nothing wrong in any of that. (And nothing wrong with using indicators as confirmation of support/resistance entries. Plenty of good traders use them.)
However, I wouldn't have entered the trade later at 100. What does your risk/reward look like now? 5/8 is simply not good enough. You are chasing this trade, which has already moved 5%, and now you are risking too much for too little.
Did you change your position size to account for the additional risk, or did you stick with £3 a point? Initially, with a 3 point risk you were staking 3% of your capital. This is already pretty high and runs a high risk of ruin. If you kept it at £3 a point on a 5 point risk this is 5% risk, which is way too high.
I hope the trade goes your way and you make some money, but don't let that fool you into thinking it was a good trade. It was a good set up based on your original plan, but you didn't stick to your original plan. And a failue to stick to your plan will ruin you in the end.
You should have passed on this trade. There will be plenty of other opportunities.