Crawling to walking

How long did it take your babies to walk once they started crawling? And yes I know "every baby is different" just curious. Mine crawled at 7.5 months, shes eager to walk (8.5 months now) but hasn't got the "staying straight" thing down. Shdll lean forward or backw4sa too far 🤣 she can stand like a champion p, one handed, she cruises but doesn't care to. She tries crawling and sticks one leg out and tries to stand, shes way ahead of herself lol. Besides holding under her armpits and letting her pull up on things and cruising.. is there anything I can do to try help her out?