Sometimes (read: always) the feeling of being alone is going to come from the people you least expected from.
You may want to question everything and won’t land up at any answer. Even at times when you’d have an answer, you won’t have the nudge to take that step forward.
In those times, just remember “the people” for whom you are doing everything.
That is going to be your anchor. When you go back to your anchor, there is no way anyone or anything could bring you down.