Would or will? Which is it?

Someone asked me this morning about 'would' and 'will', about when to use one or the other. Here's my explanation: 
Would isn't as definite as will. If you think about a man asking a woman to marry him. Let's say he is thinking about asking her and they are discussing it. He says, "If I get a good job and finish my education, would you marry me?"  This means in a general sense. He isn't asking her to marry him yet, he's just clearing the air about it. 

In the next example, the man is down on his knee in front of the girl with a ring in his hand, saying, "Will you marry me?" He's asking her directly.

I will go to the party. That's definite.

I would go to the party...but I have to study for my exams. That is indefinite. If I didn't have to study I would for sure go to the party.

Will you help me? This means right now, immediately.

Would you help me? That is indefinite and needs more explanation. If I buy the dresser would you help me assemble it?
Would seems to be some kind of future indefinite phrase. Will is immediate, right now at this moment.

I don't know if this helps you but it will get you thinking about it anyway. If you have any questions, send me a message and I'll try to help.

Thanks for reading!