I’ve been trying to learn a language for a long time, I got here for help and I managed to overcome this obstacle

A long time ago when I was a kid, I was able to learn a new language, my native language is Spanish and I learned English and Portuguese in just a few years, but when I became an adult it was much harder for me, I don’t know why it was so much harder but I couldn’t, I tried many times to learn new languages and I got stuck and I never managed to learn it, and I got frustrated and desperate, I tried to learn a language and I failed, usually after a month or two, I got here to ask for help I was recommended to learn Italian and I tried and I managed, I’m still learning but I’m not feeling like I’m stuck or that I’m not able to learn it.