Where faith is required there's an absence of proof, that's one of the major issues I have with most religions, and yes you are told what you should believe by other humans, either past or present, in fact even the so called "holy" books were only written by people (and guess what, people can't always be trusted). Another problem I have is how religion manifests human's primitive tribal instinct that often causes hatred, wars and killing, the very opposite of what most religions are supposed to teach. Many people are however in my opinion brainwashed into having faith in such religions from a very early age, I remember being one of the only children who blatantly refused to go to Church even for carol services at school and also refusing to pray in assembly for this very reason, I protested and got myself into trouble for it at a time when the UK was still a Christian state and I wasn't sorry, one Christmas I sneaked off and hid in the computer room lol. Then each religion thinks they're right and everyone else is apparently mislead and wrong which is of course absolutely ridiculous. I strongly suspect that none of them are correct and I have absolutely no faith in them.
The only religions I will start to partly believe in are the ones where I see actual evidence and proof, there are a couple of religions that allow one to seek some actual truth without just faith alone, but even then none are totally conclusive. There's a few forms of
Spiritualism and I don't agree with everything they teach and part of it still relies on faith alone, but if you wish to investigate as I did since 1996 you can discover yourself that there is definitely things that exist that are not explained by conventional science including what appear to be energies that show signs of intelligence that some people may conclude are "spirits".
Buddhism is somewhat different too as you are only expected to have faith in the techniques you are taught (E.g. meditation) and you then discover knowledge yourself.
Scientology is often criticised because many people believe it's a dangerous religious cult and in my opinion they are far too interested in recruiting and then taking over people's lives and money (be very careful), however at least in the early stages they only really teach techniques which you can apply to everyday life, some of these techniques do actually work and therefore this also isn't faith alone, but it is very common for early teachings to be particularly believable in order to get new recruits into such religions and some of what they teach is very similar to proven psychology. Once you are impressed and believe this however you are then conditioned to have faith in other teachings that probably wouldn't be convincing otherwise.
