You might want to work on your cs. With a score of 10/8/4 against 5/4/2, you were probably controlling top lane. However, he has almost double your cs, which shouldn't have happened. You either are spending too much time roaming as top, or you aren't getting your last hits. That also makes your BT a lot more useless.
Top should really only roam when either a) your mid is getting stomped or is getting overextended on, or b) top is getting stomped and you have a large (20 or so) cs advantage, so you can afford to leave the lane. Helping the jungle when he's invading or is invaded is an exception to this. If he needs help, you usually give it. It can result in a kill on the enemy jungle and some free buffs, which is always sweet and usually results in easy lane dominance.
Csing should be your priority in lane, only going for harass when they go for a behind lines cs (i.e. caster minion when some melee are still up), or when you know you can win an exchange and have no enemy minions really low on health. The first situation gives the first hit advantage, as their aa is being used for a cs. This also means if they retaliate, they're surrounded by your minions, so you get all the minions aa as help, while his minions have to move forward and around your minions to attack you. They're also further extended, which means you have less distance to retreat than he does. Keep in mind that every time you aa harass, you push your lane a little bit because enemy minion agro changes to you for a brief moment, which lets your minions get free hits on the enemy minions, pushing the lane. The second is more to bully them out of getting cs. This allows you to freely cs and get a gold advantage. This heavily pushes the lane, and opens you up to ganks. Wards are necessary when you start to zone.