I do not think it will get anywhere near £1 - I would likely sell when/if it reaches something like £0.002 which would be a 40x for me at that point for me.
Yes I could have put this £150 into something else but I have 7 other crypto I am more focused on and feel this £150 was worth a gamble while the price was very cheap.
You have already confirmed that you are gambling so there isn't anything more to say about it. £150 is really not a large amount of money, as long as you are willing to take a loss you can invest. No problem.
If it were me, I would not invest in the luna classic as it is dead for me. I would take this £150 to a casino site instead. I can entertain there for £150 and maybe if I'm lucky I'll get £200 or £300 afterwards.