I rocked a Goatee for many years, year round, now I'm on a full beard, but can't let it grow long or it just looks messy, so trim once a fortnight back down to 5mm. I love the fact I only shave the neck and above the beard every 3-4 days or so.
Growing from scratch takes a little time, so OP, I'd give it a couple of weeks at least to bed in. Different people grow beards at different timescales, Richard Keys can grow one in 4 hours !
Then invest in a trimmer to keep it manageable and to trim around it and also the bit above the top lip or you end up eating more beard than food.