You will be creating a whole bunch of sh!t for your future self bro. In the short term your bike swill be seized and probably cost more to release from jail than it's worth. No license and insurance.. apart from the fines, they will put suspended points on your license, as soon as you apply for a license, they kick in and you will be banned before you even receive it in the mail. From there you will have to tick <YES> to the box where insurance companies ask you if you've ever been banned etc. and you'll have to explain why. If they will still cover you, you will have to give them an arm. leg and a testicle. If you lie and you find out, your cover is void...That's the good news.
If you have an accident and damage property -a car for example - you will be sued for the damage since you don't have insurance. Even a minor fender bender will run you £2K. If you hurt someone to the extent they require medical treatment for the rest of their lives - let's call it £2.8million - you'd wanna hope your rich uncle Bertsta dropped a sh1t-ton of loose change down the back of the sofa (he didn't) and your life is effectively screwed because they can garnish your wages, so if you're planning a regular job paying taxes, they will find you. So that limits you to cashies or turning tricks behind the houses of parliament until you grow body hair and your johns lose interest. If you kill some old dear on the way to the shops to buy cake for her little nephews, expect jail time and notoriety in the local media. You may survive jail with your back-door v-card intact, but then it gets awks when you apply for jobs and have to explain why you missed your GCSEs and why your work experience is red band at the local HMYOI