Make vs Let

to make someone do something means to oblige or force someone to do something, probably against their will.

to let someone do something means to give them permission, to allow them.

in the active form to make and to let take the infinitive without to. Examples: They made me to confess and then they let me to go.

in the passive form to make requires the infinitive with to. Example: I was made to wait five hours before being seen by the doctor.

there is no passive form of to let, instead to be allowed is used. My teacher let me use a dictionary = I was allowed (by the teacher) to use a dictionary.

don’t confuse to make someone do something with to have someone do something. to make means to force / oblige, whereas have someone do something means to get a third party to do a task for you.