What is the reason for frequent wet dreams when intending to pray but not abandoning it, and can a person's inability to worship God be an indication that God does not want him to worship Him?

Abandoning prayer is one of the gravest sins, and a wet dream is not an excuse for abandoning it. Allah makes worship difficult for those who prefer misguidance, follow their whims, and transgress His limits, and He increases them in misguidance and error. As for whoever turns to his Lord with sincerity and truthfulness, and is keen on following the Law, Allah will not disappoint him. Therefore, you must make a sincere repentance, observe your prayers, and abandon sins so that success may accompany you in this world and the Hereafter.