A friend of mine believes he isn’t saved

Basically he believes he doesn’t have the Holy Spirit and hence isn’t saved. He confessed several times that Christ is Lord. He still believes he isn’t saved as he didn’t feel any change. But he fulfils all the criteria’s. He believes Christ is his Lord and Saviour. He probably has an relationship with him. He prays. Problem is half of his prayers are that he wants to receive the Holy Spirit and well he believes he doesn’t have the Holy Spirit. Could that impact his salvation or his relationship with Christ? PS: thanks for the answers on my previous post. My anxiety about salvation is gone. Thanks a million!