html - How to add client specific login to my site so they can access a page only they can see -

i not programmer , rely on products such wix, weebly, , wordpress "cheat" drag , dropping need. trying build site have informational pages need ability clients able login , submit/change forms upload documents. sites such ones mentioned above able setup informational site , have log in - need log in direct each individual "personal page" can edit forms , upload more documents. ideas? there perhaps html embed code or plugin of sort this?

weebly, knowledge, can't handle custom login screens. not familiar wix, assume same.

consider looking wordpress. more friendly non-programmers, , easy customize. default wordpress build comes login system.

customization looks easy enough. hope helps.