How do I get and stay wet?

Theresa

I can’t get wet easily and so every time I have sex we use lube or spit but even if it feels good from fingering or penetration I can’t get wet and I can’t stay wet either. How do I fix this? Do I need to take supplements? I want to stay wet during sex so that it’s easier and can slide in better but I dry up so quickly. Pls send help 😭🙏