How far can £100 go?

I think its possible but very difficult and you will not get rick quickly. Because to place big bets, one needs to have a high conviction on the trade. Please don't bet 50% of your account on a trade its insane. The maximum you can bet is 10% and that should be a high high probability setup. Which means you probably will have a handful of trades a month.Your account will grow exponentially but not quickly.

That's why you do it with a 100$ account that you do not care about :O i mean, why not.. high rish, even higher reward haha

I would never do this on my real account tho, not stupid.. :O

Happy journey! But I see, you are planning with a particular SL and TP, but be flexible if you want to stay here for a long time! Make your trading plan in order to the market demand and supply, not on your personal choice! Your trading strategy is the key here, yes you need to follow money management and risk management policies so honestly!