What's real joy?

Here I am. College graduate. Living at home. Working at a grocery store. Still not accepted to a PT school yet. Sometimes it's just frustrating. Like I can't grasp the purpose in me working at a grocery store barely making minimum wage when I could be working as a PTA making good money. What I cannot understand even more is why I'm not already in PT school working toward my DPT. Sometimes I just don't understand the "why" behind certain things. And I've really been struggling lately with this like am I gonna go nowhere in life? Cause that's what it feels like at sometimes. But tonight I opened up my Bible to Ecclesiastes 1. Don't ask me why cause I don't know. It was just in my heart to read it. And in Ecclesiastes 1 Solomon talks about how this life is meaningless. How everything we do in this life is meaningless. And Solomon was talking about his life. And he was like one of the richest, wealthiest, wisest, pretty much had everything he wanted guy. Like my thought is of someone famous today. And he said it was meaningless. This life. I couldn't stop reading. The thing is Solomon had it right...cause what he was saying was everything in this life is meaningless and worthless apart from your relationship/commitment to God. I went on to chapter 2 because I just couldn't put it down. I wanted to read more. Solomon then talked about how he tried building the biggest houses, temples, having multiple slaves, etc. It makes me think of in today's time having the hottest spouse, the nicest car, the biggest home, the nicest electronics, the nicest car, the best job, etc. But Solomon said that His true joy came from the Lord. Like I love that! I love how in the midst of feeling just lost and unsure of my near future that I have plans so much bigger than here on this earth. That my time on this earth is just a season. But that what comes after this life will last for forever. It just put it into perspective that God has a plan and my joy isn't in having the best job, or getting into PT school, or even living in the nicest house or apartment. It's in this awesome Creator who longs for a relationship with me. And that's enough. Actually it's more than enough.