Having been in their shoes before, this is where I think the going will start to get 'tough'. The 'high' of the praying over and outpouring of the spirit weekend is slowly ebbing. If they do not continue to feed their spirit, this is probably when (and I'm speaking through experience), all sorts of distractions come in and they start to feel detached. When they start feeling detached, they may start to wonder if they had felt anything at all in the first place and then more doubts and laziness may creep in and perhaps, start to fester. Been there, done that. We've probably experienced this at some point in our spiritual journey with God.
Of course, not everyone will be like that. There will be those who will not slack and will be determined to stay the course. This message is not so much for them. I am more concerned about those who may think that they've not really received any obvious 'gifts' and may be feeling disheartened. Remember, I wanted so much to receive the Gift of Tongues and I did not receive it immediately. In God's own way, in God's own time.
Whether you received the outpouring of the Holy Spirit yesterday or 20 years ago, there is no difference. You need to stay on track with much determination and help. Small things help. Listen to praise music. Sing praise music. Read the Bible. Read books or watch videos which try to help build you spiritually. For me, the most helpful thing to do is to just talk to God like a friend. Break all your walls down and speak to Him the truth of what you are going through and what you are experiencing. Admit your weaknesses and ask Him to strengthen you where you are lacking. Ask Him to help you find your way. Ask Him to make it more bearable. Talk to God. Just keep having conversations with Him on a daily basis and you will find that it helps you so so much in your walk with God. The fact that you are talking to Him and asking for His help already shows your humility and willingness to embrace the love that our Lord Jesus has to offer. Then once you have started your baby steps, you can start to build upon your gifts and go and serve the Lord in the way He wants you to.
Just remember that as we all strive to stay on track with our journey with the Lord, that it's not so much about 'feeling' but about being consistently faithful to Him. It takes effort on our part and a lot of help from God. So even if you no longer feel the 'high', don't give up. Stay on track. I promise you that after a while, you will start to see tangible results in your lives.