1) The most immediate problem is one of grammar, namely that you don't have any. In one giant paragraph about his history there's only one full stop/period and it's right at the end. You'd have to raise the level of writing up until it's at least easily readable. I don't care when someone misspells something or uses a comma in the wrong place, but at least make some effort.
2) Apart from it being very difficult to read and understand, your character's history is mostly ok. Ignoring stuff about Magic (I'll get to that later), its not a suitable background for a Dragon Slayer. The canon has established that all DSes were raised by a dragon until 7/7/X977 etc. but their pasts before that are all a mystery. In other words, if you're charatcer is going to be a DS, you can't make any reference to his life before he met his dragon.
Alternatively, you could cut out the stuff about being DS and stay as the son of a scientist.
3) Magic:
Okay, so I gave commenting on every one individually. Suffice it to say, a lot of then are over-powered.
Anither problem is that the effects of your Magic are too many and too varied. If we look at the other DSes:
Natsu: uses fire to deal damage and increase the power of his attacks.
Gajeel: uses iron to increase his defenses and turn his body into a weapon.
Wendy: uses air to create tornadoes, cleanse illness or power up the attacks of others.
They're all using one thing/element to do two or three things.
Laval: can a) power up the strength of attacks
b) use light to fire beams, cause explosions
c) use some kind of dark magic to blow enemies away, deprive them of oxygen
d) fire meteors
e) teleport attacks away
f) control gravity
g) increase atmospheric pressure
h) summon stars
i) cause a mini black hole
j) increase his own speed and destructive abilities
Plus according to your history, at the age of 8, Laval had mastered a type of magic that lets him move at the speed of light. Does that not seem over-powered to you?
The canon DSes all use one element each; fire, iron, sky. Lava's element appears to be "everything found in space". What's to stop someone making a DS whose element is "everything on Earth" who can summon tsunamis, volcanoes, hurricanes, earthquakes etc?