My deeper spiritual belief is that everyone suffers to some extent. Every single person on this world. Some is growth suffering and can have meaning and some is just meaningless, maybe due to karma or just completely random circumstances you didn't chose. When I was younger I thought only real problems are existential ones but now I don't think that at all. Suffering can mean a lot of things that we don't even see. On the outside you can appear to have everything, money, looks, but on inside you feel inadequate maybe. We also suffer for reasons we don't even know we suffer. Like a stupid person will never understand how it's to be inteligent and wise. Even if they don't fully realize, they are suffering due to their inferior nature. You can suffer for your mistakes, mistakes of others, etc...
At my best point in life, I would say my life was amazing, maybe 8 or even 9 out of 10 but I could never achieve content place in this life due to my insecurities. And I understood that. I could only be relatively happy not fully happy. Part because of my mistakes, part because of others, and part because of factors I was born with. Just how it is. But even if you not happy you can still feel fulfiled, I believe. If you think your life has purpose and you're doing good.