What's the practical way to get more likes and followers on instagram?

Collab posts. Both accounts show as authors so the post goes out to both sets of followers. Find someone around your size in a neighbouring niche and pitch them one specific idea, works better than a vague "want to collab?"

Don't buy them. It's tempting but fake followers never engage, so your engagement rate drops and your real posts reach fewer people afterwards. What actually worked for accounts I've helped with: pick a narrow topic so people know why they'd follow, post reels regularly because that's where new people find you, and put the hook in the first second or two. Reply to every comment early on, and spend some time commenting properly on bigger accounts in your niche. Saves and shares seem to count for more than likes these days, so make stuff people want to keep.