Nah don't be daft mate it all depends to be honest mine took months (190 litre) drop a bit of food In there and leave it go (make sure the filter is on!) there's stages which let you know how far along your getting
Ammonia builds up
Nitrite rises as ammonia decreases
Nitrate builds up as nitrite decreases
Your going to need a checklist of things you need:
Water conditioner - add each time you do a water change
Test kit- don't let the fish shop keep taking your
Money, test it yourself!
If I were you I would take it slow and get it right first time otherwise it becomes demoralising and you'll end up giving it all up before you've even got started.....I know because I've been there!!!!!
Don't be afraid to ask questions though!!!!!!