Hello, brother 570 ,

You said, you are doubting, that Paul was inspired by the Holy Spirit, because he made mistakes.

Now here is your first not quite correct idea.
Lord Jesus wants all his sisters and brothers to be filled with the Holy Spirit. That is not the same as infallible.
I know thousands of Christians, filled with the Holy Spirit. None of them has the idea, that he is infallible.
But there comes forth from this, that we all should strive to become filled with the Holy Spirit, also YOU. This is an invitation to a great, wonderful, always more exploding joy, an invitation for YOU.

Now here is your second thing, that is not quite correct. I don´t want to make you sad, but I have to say, that the general idea is amongst all Christians, that Paul is not the writer of Hebrews.
The style of writing is otherwise than Paul had as style, the use of words is another sort of Greek.

Now the third thing: In Hebrews 1 v 5 the unknow writer says in this epistle from - perhaps- the year 8o after Christ, (Paul was killed perhaps in 70),
that he quotes Psalm 2 v 7:
" He (the Lord) said to me:
' You are my Son' " .
And only the last clause goes back to 2 Samuel 7 v 14, Indeed there the prophet Nathan speaks about David's son Solomon. The unknown writer of Hebrews states here that the coming Jesus is a son of mankind , real human .

Now you state that Paul made a mistake, when he said in Acts 1 v 18:
" Judas felt headlong , his body burst open and all his intestines spilled out.
But not Paul is writing this book, but Luke, (compare Acts 1 v 1 with Luke 1 v 3). And Luke is quoting Peter.
So we have to understand the thing like this, that Judas hang himself, but later on got loose from the cord and fell down to the soil.

And what you wrote about 1 Corinthians 15 v 5, can be explained as a compilation.
Paul knew certainly about the eleven, from Mark 16 v 14, and he knew about all the manifestations with Thomas and without Thomas . And he knew about all the other manifestations, John 20 v 19 - 29, , Luke 24 v 37. And he takes all this together to make the story not too long.
Nothing to become nervous about.

So I think, that all your questions are now answered. I shall be glad to answer more of them

Greetings
Ger