I am planning on simply buying more coins after the collapse.
But I wanted more risk - I think some sort of spread. What do you think?
I would gradually buy coins over the next couple of weeks. If you do that, there are two possibilities:
A. The price keeps going up, and when the next big correction happens, your average price will not be much higher than the low of that correction, or maybe even below it.
B. The correction comes in the next couple weeks, and you'll get some coins before it and some during it and after it, so your average price will be fine.
Either scenario A or B would have a good outcome for you. It's more risky to buy all at once or to wait for your desired price before you buy any.