hey ya all,

so heres my question. (i am sure tons of ppl had the same question)

for the example i have 1 miner or 10 or a farm of 100-200.
can i decide which block to mine ?
lets say i did a transaction and right now its in the unconfirmed pool. (for 3 days now)
can i with my miner(s) pick it up and confirmed it?

if yes how?
if no why not? (please alaborate for a  non-technical person so every1 could understand the answer)


thanks.