How to deal with suffering and losing faith? I came across this section by chance, and read another question by a person with misanthropic feelings. I read all the answers because I feel the same as her.
I've always been spiritual with an interest in Buddhism and Taoism, but it seems to slip away. I too suffered a lot because of others, but what really got me into this misanthropic state is the suffering of so many animals at the hands of humans. It saddens me so much and I begin hating people because of it. Not all people, just a lot. It also saddens me a lot to see children suffering but because they turn possibly into cruel people themselves. The plight of animals gets me more. I find them more special and innocent than people yet they have to suffer so much. A lot anyway. Now, the responses to that other persons question helped me realize some things, but I'm still struggling with the suffering of animals. Why can't they be spared if suffering is a tool to evolve?
Studying psychology, biology, anthropology and neuroscience I can't help thinking that humans are acting based on chemical, biological or psychological reactions of the brain. There is no enlightenment, just another religious promise - like heaven, enlightenment or the 11 virgins - depending on the belief.
I feel like I have no more answers, only confusion and questions, and i also feel like I've reached a point where I'm so fed up with the suffering of animals, children or good people. I'm so tired of it all. Not in a sense that i want to hurt those cruel people, but in a sense of wanting to leave it all behind. But if i did, then I wouldn't be around anymore to help loved ones or some of the animals.
Emotionally I suffer because I can't make even a dent and physically because I work hard to help out as many as I can.
I've always been spiritual with an interest in Buddhism and Taoism,
but it seems to slip away. I too suffered a lot because of others, but
what really got me into this misanthropic state is the suffering of so
many animals at the hands of humans. It saddens me so much and I begin
hating people because of it. Not all people, just a lot. It also
saddens me a lot to see children suffering but because they turn
possibly into cruel people themselves. The plight of animals gets me
more. I find them more special and innocent than people yet they have
to suffer so much. A lot anyway. Now, the responses to that other
persons question helped me realize some things, but I'm still
struggling with the suffering of animals. Why can't they be spared if
suffering is a tool to evolve?

Buddhism can be rather harsh in the way it describes suffering. Bottom line is that no one is free from suffering until one reaches enlightenment. Until then, we can try to make things easier for others and not least ourselves by following the noble eightfold path.
Regarding ourselves, buddhism reminds us that people are acting cruel due to their own pain. As such, cruelty is the evidence of suffering of the person committing cruel things.
The idea is that if we can develop compassion - even for the ones committing cruelties - we are in fact going easier on ourselves for preventing the development of even more aversion towards other peoples cruelty. Everyone benefits from this, but it takes a lot of effort.

Studying psychology, biology, anthropology and neuroscience I can't
help thinking that humans are acting based on chemical, biological or
psychological reactions of the brain. There is no enlightenment, just
another religious promise - like heaven, enlightenment or the 11
virgins - depending on the belief.

Maybe enlightenment is possible in conjunction with the fact that we are chemical, biological and psychological beings? I'm not sure i see the opposition.

I feel like I have no more answers, only confusion and questions, and
i also feel like I've reached a point where I'm so fed up with the
suffering of animals, children or good people. I'm so tired of it all.
Not in a sense that i want to hurt those cruel people, but in a sense
of wanting to leave it all behind. But if i did, then I wouldn't be
around anymore to help loved ones or some of the animals.

This is true. Committing to helping others may be the least bad option for everyone.

Emotionally I suffer because I can't make even a dent and physically
because I work hard to help out as many as I can.

Just don't forget to take a break every now and then.