can i get spp student visa after 4 year study gap?

[vankar hiren]

profile
10TH 68% in 2004
12th 62% science in 2007
IT one year computer course 2008
since 2008 i am working as a faculty in computer center
1year tuition fee paid
i will do GIC as i get account num
got LOA from conestoga college in diploma computer programmer

is 4+ year gap can be problem to get visa?
i have only work experience letter to show