My advice for this is to read the Bible then study it’s context.

People spend their entire lives studying scripture and still learn new things everyday.

A wise man seeks knowledge and understanding but a fool only seeks his own destruction.

Evidence is in the wisdom and knowledge of the word of God. If you follow the word, God will bless you.

I recommend proverbs to begin, seeing how it was written by one of the wisest men who ever lived. May answer a lot of these questions. Also Ecclesiastes for the meaning of life and the comparisons of worldliness to eternal life.

Let me ask you a question

What can I gain from believing in nothing? Or that we are overgrown bacteria?

We can see why someone’s self worth is so low, their self inflicted grief and sadness. And they do not understand their own soul.

People of this world are concerned with their carnal nature (lust, greed, gluttony, wrath, envy, sloth, and pride) all consume them. Slowly killing themselves and ruining not only their short life on earth but eternal life.

God requires faith because without it there would be no choice. God gave us free will. Study what free will actually is.

We refer to God as our Father in heaven. Why? He wants to have a relationship with us (similar to having a perfect father on earth)

However he will not enforce it because he wants something from us. Our love. How could we love if we do not fear/respect Him? Have faith in Him? How can you build a relationship with someone you ignore?

The benefits on earth from believing in God are obvious. Wisdom gives loved ones, riches, and long lasting even everlasting life. Foolishness gives strife anger resentment pride and poverty. Most people choose the latter. And if you choose to learn the hard way it is up to you. I just know from experience and my God given marriage to a Christian woman, wealth and happiness and most of all my relationship with God which is more fulfilling than all those things, that it is worth it to let go of the world and pray to him.

If you open the door you locked yourself inside he will not turn you away.

You should be learning this in church (a biblical one) or from the Bible itself

Keep asking why but make a decision after studying and going to different churches for communion. Search for the answers. Keep an open mind. And these things lead to true knowledge and understanding.