Making sense of advice

Listening to a lot of advice over the years, I found that when I listen to something, there are inevitable pieces that don’t make sense, that go against my current way of thinking.
For example, in a wealth seminar, Tony Robbins says that to be a giver , you have to start with what you have now. Whatever money you have, give 10% of it away. It makes no sense for me because if I have little, giving that 10 % of that little away isn’t going to make much of a difference and the main purpose of giving for me is to make a difference.
But as a newbie I often fall for the thinking trap that says—this doesn’t make sense, so I cannot trust the rest of his advice.
Well, I don’t think like that anymore but the point is this. When you disagree with one thing, don’t take that one thing and use it as an excuse to discard all the other things that do makes sense.
A piece of advice is fundamentally nothing more than an opinion. It is not carved in stone. Somebody is sharing his/her personal experience and the theories they have built around them based on their own belief systems.
You have different belief systems so naturally some of the theories are not going to makes sense.
Think about it like going up a mountain.
Your guru is on top of the mountain, you are at the bottom. You ask your guru describe the path to me so I can navigate better.
The guru describes the path looking down..and he also describes scenery which you cannot see.
The path is not the same as visible from these two positions. Of course his description might not make complete sense to you at this point. But do not take that which doesn’t makes sense and go—this doesn’t make sense…so the rest must be absurd also. This is going to be the default tendency because thinking like this gives you an excuse to stay in your comfort zone.
Don’t fall for this.
Whatever works, just take it and apply it. And soon the stuff that was absurd once will start making sense too.