what should I do now

[corporelax]

a still of 4387 m/s delta-v and I am on Orbit what should I do 

It met the kraken and blew up for some reason

So my Rocket; UKA mk1 (United Kerbal Association )

it has 77 parts, 9 stages and 6247 total of DeltaV

[Dfthu]

Presuming you're in LKO you could do a munar flyby, Mimnus flyby or landing, or even if your good maybe a Duna flyby. ( if your completely exploded though you're screwed ) 

Edited April 4, 2016 by Dfthu

[Jetski]

That much dV you can do a flyby of pretty much anything, and Land on most moons plus Dres or eeloo. Practice some slingshot manouvers!  Get a flyby of Eve and use it to sling you to Moho

[max_creative]

Assuming it's still working, you can try some stuff here. Also, why is this in challenges and mission ideas? Just wondering.

[ShmikeTP]

Because he's asking for mission ideas I assume.