Joel's prophecy had to do with baptism with the HS, which was fulfilled.
--Apostles laying hands upon another is not in the Bible called baptism with the HS,
--only the Lord would baptize with the HS (Mt 3:11) hence no man can administer baptism with the HS for the great commission has men administering water baptism.
--if HS baptism is the one baptism of Eph 4 that makes one a disciple, that saves, then that means those whom the Lord has not baptize with the HS are lost due to the Lord's culpability in failing to baptize them with the HS and the Lord is showing respecter of person with whom He does and does not baptize with the HS contrary to Acts 10:34-35.
Mt 5:18
"For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled."
Law here refers to the OT law of Moses of which Joel was one of the prophets. If Joel's prophecies were not fulfilled by Christ then all that OT law is still in effect including the animal sacrifices. the purifications, etc, etc. Of course Christ did fulfill all the OT law taking it out of the way replacing it with His NT, Col 2:14-16; Eph 2:14-16). The word "till" being a time limiting word, that is, the OT would last TILL Christ took it out of the way by fulfilling it. So if has not been taken out of the way through fulfillment then it must still ALL be in effect.
Not sure how you can ignore Acts 19 as a legitimate baptism by the Spirit with tongues and prophecy happening. So it was not just two events as you claimed before.
Anyways, a person first needs to believe in the Lord for salvation first before being water baptized. Just being water baptized without first believing does not help a person. Apparently you think that Paul and Silas did not really mean a belief in Jesus saves when they told him this and therefore you have to change the meaning of belief here into something else.
Acts 16:30-31
30 “And he brought them out and said, “Sirs, what must I do to be saved?”
31 So they said, “Believe on the Lord Jesus Christ, and you will be saved, you and your household.””
According to you… this word “Believe” is in reference to “baptism with a belief in the Lord Jesus” but that’s not what Paul and Silas said.