It's our abilities to deal with obstacles and hard things setbacks and much more in our lifes.
Also in some point the LEVEL OF HARD or EASY wich we choose knowingly or quite accidently.

Take your problems and compare with other people yours you will find that many people would be HAPPY If they only could have problems what you have.
If you struggle and not doing well it means this problems and issues are for you to grow and learn because If you start talk with other people who got more hopeless situation then yours then you find out that WOW my problem is really not that big and i can find the solution.

In many case they say GOD and life is fair and you get only problems what are exacly for your level in mentally physically by your prepared conditions.

Now If you compare yourself- with someone who lives in bad countries goverment are corrupted violance no resources and daily life is huge struggle, and you live in let's say in eu usa or any other democratic western society and you feel like you struggling and you poor, then someone else who don't even live in this country where you will that he or she will be happy If they would be you with your problems and opportunities.

If you see anyone who got way harder struggles than you have then it's because they are strong enough to carry them but If those struggles will come to you then it will be too hard for you to deal with them because If you complain about your much easy life and struggles.

Whenever you are in bad situation or financial struggling or you feel too many bad things and you think you don't do good enough then think about for those who could look you as the HAPPY person only If they would have your life they will feel like they are happiest person on the world.

So If you see someone more wealthy and have more success and doing better in their life it means their capabilities to solve problems and issues are just way better then your level If you both live in the same countries or City or similar goverment regime location.

So in otherwords the success is the capabilities to solve problems and issues and to find best solutions the moment in life you have issue it's becouse you need to solve that issue and once you solve that and find solution you move on to higher level those people who are on higher level in many ways than you are If they would be in your situation it will be easy for them to solve and find the solution and they would say that If they would have so Easy life like i have then they would happy because for them my problems are not problems at all only for me because people have different capabilities to solve problems.

Off course when we look at someone with complete bad situation like homeless then my problems would be nothing compared with them.

But also any problem issues will show up in your life the faster you solve that right way the faster you move higher level up the thing is that If start getting use to live in hard situation then your level going down gradually and you don't even notice that you slowly going down and getting use to with so don't get Comfortble track your wealth and everything If it start falling lower and lower you have problem and you need to deal with this issue asap.

People who don't act asap once problems coming then they going down slowly so they should keep their level always stable or higher that's why it's very important to control when where and for what and how much you spend money.

You find often people in very down who got use to with Critical situation and waited too long the most dangerous thing is the slow falling more down and down when you get use to with lower life standards lower health or wealth that's the most dangerous thing when you get use to with bad things, also people now kind of getting use to with wars too and that's bad seek always for better things otherwise you end up in situation like BAD life is normal.

But successful people are great problem solvers and they reach high level by solving problems fast and best ways while those who don't move up so fast most of them just not that great on solving the problems and find solutions.
But If you are not happy about your problems just look around and compare your life with others you will find out that your situation is not that bad or hopeless at all it's just Challenge for your to grow and getting better and stronger once you solve current LEVEL problems you can move up higher level you have few more better things on higher level too but you also have more complex and difficult problems to solve.

So person who been in hardest situations like near life death or fighting their life or struggling hard If you give them better conditions better surroundings then yes this kind of person is the next CEO and business people and hard workers.