Advice on language learning for an old man

After getting fired by my corporate job, three weeks before my NYC sublet lease expired, I decided, hastily to run away. PR was the furthest I could get without worrying about working laws...so I went for it, and honestly, I love it!

But...I need to learn Spanish, and idk if I'm too dumb or too old...but three years in and I can't do very much. I don't have many friends, I can't afford to live in the tourist zone (I wash dishes) so making friends without Spanish is near impossible. Any advice? Anyone my age that has mastered a foreign language?

Any tips or ideas appreciated. Thanks!