you better not use your skill points now and only train your skills with activities (i mean training of skills).
the explanation is that you can train your skills without skill points only until level 200. That's why you should train your skills with activities until the level 200, and only then spend your skill points that you gained from gaining levels.
if you ask advice about what to upgrade first - if you have possibility to buy huge ammount of ammo - upgrade your Marksmanship and Agility levels. If you don't - then upgrade your Strength and Close Combat levels. Also it;s always fine to have your Smarts and Thecnical skills to be upgraded to 50 points.
about missions - you can view ALL THE LIST going to "Inventory -> Missions" in game. All the coordinates and aims are there.
Good luck have fun!!
also sorry for my english, i'm russian))