Why do I keep pronouncing 'h' and 'f' sounds wrong even after recording myself?

I've been recording myself on my phone for weeks, but I keep hitting a wall with certain consonants. I feel like my tongue placement is just off for the specific sounds in Hausa. Does anyone have a guide or a visual aid that breaks down the articulation points for these tricky sounds compared to English? I really need to break this pronunciation trap before I move on to intermediate grammar.