Can I use 'achieve' and 'realize' interchangeably in the sentence? Have I correctly used 'working for'?
The only way we can (achieve, realize) our dreams is to act now...to start working for them.
They both work fine. I would change "working for" and the punctuation. I recommend always checking to see whether a simple comma won't work before resorting to anything strong or more exotic: The only way we can (achieve, realize) our dreams is to act now, to start working toward them.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
They both work fine. I would change "working for" and the punctuation. I recommend always checking to see whether a simple comma won't work before resorting to anything strong or more exotic:
The only way we can (achieve, realize) our dreams is to act now, to start working toward them.
The ellipsis is tricky to use (you used it unadvisedly), and I know of no good way to rend