At Hove Crown Court, Deghayes admitted obstructing a police officer and driving without insurance.
It was revealed he was in breach of a suspended sentence imposed in May last year for possessing cannabis with intent to supply.
Officers had found him in possession of 160 grams worth of the class B drug, with a street value of between £1,600 and £3,200.
At the time of the offence, when he was aged 17, phone records showed he had been arranging drug deals.
Deghayes spent most of last year under an electronically monitored curfew for the offence.
Richard Cherrill, prosecuting, said officers stopped him on December 13 at 1.30am.