It will definitely accelerate in frequency and magnitude. That's the design of satan's tests. For kids it is simple desires, for teens and youngs it is food, sex etc. The more you grow the more complicated tests will become. Thinks of it as school tests then masters tests.

one type of tests we can avoid is 'jugmental tests'. Suppose you judge people for doing certain things. You don't know in what conditions they are doing those things. if you judged someone right then it's not a serious issue, but if you judged people wrongly, you may face similar scenerios as a test. By avoiding judging people we can avoid a lot of bad situations.

It's not very hard to keep Going. Understand that the body and soul are different. That will help you in stopping the body influencing decisions of the soul. Second once you have accepted that you are a soul, understand that this life is mere a step in an otherwise long journey. If you are strong then make hard choices, change the world. if you are weak then make minimum choices just to survive righteously. But don't make wrong choices as they will ruing your journey beyond death.
Just accept that only your decisions matter. Literally Nothing else matters. That's a motivation strong enough to keep going.

god didn't created a system of pain and suffereing. He just created a system. It's us who create the pain a nd suffering by losing control on our bodies. Think of this as God created a hammer (body). When you are inexperienced you will keep hitting your hand with that hammer, because you don't have enough control on it. That's the pain you caused by your lack of skill. The hammer and god are not at fault here. But once you are skilled enough with your hammer you will never hit your hand again. Same is life. Once you are skilled/experienced with this body you won't do things under greed, lust, wrath envy etc which are basically your body overpowering your soul.
As for the world it self there will always be pain because there are many souls hitting their hand with said hammer. There will always be inexperienced souls. Only the experienced-inexperienced ratio varies over time.

Why do you need to be tested before giving your driving license. Same is the reason here. In animal lives a soul is tested for basic interrelationship between soul and body. like breathing, digestion, reproduction, sleep etc. In human life a soul is tested on upto how much extent it has control on it's body, emotions and it's skillsets of exerting free will. How well it responds to exteral situations, choices, emotions, desires, pressure and what choices it makes. This experience is refined over and over via reincarnations. Then when it moves above human life it is tested for it's management of lower species, control on their own powers, Exertion of their abilities etc. Every being , every soul is tested according to their roles. If they pass, they move on. If they fail, they try again.

Experienced souls are very less in comparision to inexperienced and stagnant souls. Though I agree that the ratio is worsening over time. Things are moving fast on the path of a catacalysm. There is a lot of violation of free will. Test means we are presented with choices and we have to choose among them. but the situations without choices are rapidly increasing throughout the world.
Still , don't be demotivated. As I said focus only on what choices you make. When you face a situation without choice claim violation of free will and ask for God's intervention.

We understand the realm. The rules are same for everyone. free will and karmic system.
curriculum has been shared over time by many other messengers. There is one God, Help to Grow it and don't harm it. It's as simple as that.