We use will/won’t (the simple future) in the following ways:
1 to give facts and information about the future:
Our new house will be ready next month.
2 to make predictions of future events and to say what we think will happen:
I will be famous one day.
3 when we decide to do something at the time of speaking, for example when we agree to do something:
OK, we’ll meet at the theater, then.
4 in threats and promises:
I promise you I’ll give up smoking.
We use the present progressive to talk about arrangements and definite plans, especially when the time or place has been decided:
We’re going to Brazil in January.
Going to + infinitive
We use going to in the following ways:
1 to talk about plans, especially when we have already decided to do something:
Sheila is going to call me in the morning.
2 to talk about a future event on the basis of present evidence:
Look at the cracks in the walls. This house is going to fall down.
We use will/won’t to talk about facts or what we think is true about the future:
I’ll be 17 on my next birthday.
We generally use the present progressive to talk about arrangements:
I’m meeting the board of directors on Friday.
We use going to when we have some evidence for what we say:
Look at those clouds. It’s going to rain.
Talk to your friends or family about your predictions for the future and/or what you are going to do in the next few days.