Is dreaming big a bad thing or is it ok?

I tend to dream big alot and i tend to want thing sinstantly with this age of tech and it can be annoying at times. i even reaserch thing sbut never do them i wonder if ther eis a way to dream small and what might that look like?

like i want to start a youtube channel with my low-end pc and my fmaily says it dosent hurt to try but im not sure, i want to do gaming but everyone does gaming and im very limited with my pc, etc i could go on but i wont.

my interst will probrably change to something tommorow which is annoying.