I hear you. I would suggest that you would start to earn money so you can to go to college. It sounds like you have a good base of schooling to start on. I would suggest getting help with math, maybe seeing the teacher about it. I think your brother mght be on the computer as his way to cope.
I can show you how to have peace. I come from a different situation, but still challenging. I trusted Christ as my Savior, and though sometimes I still feel lonely, I know I can talk to him for help. First, you have to realize that you are a sinner.
Romans 3:23,"For all have sinned and come short of the glory of God."
Jeremiah 17: 9, "The heart is deceitful above all things, and desperately wicked: who can know it?"
Second, you have to realize that you deserve death.
Romans 6:23a, " For the wages of sin is death,.."
Psalm 37:38,"But the transgressors shall be destroyed together: the end of the wicked shall be cut off."
Revelation 21:8,"But the fearful, and unbelieving, and the abominable, and murderers, and whoremongers, and sorcerers, and idolaters, and all liars, shall have their part in the lake which burneth with fire and brimstone: which is the second death."
Third, God is holy.
Psalm 5:4,"For thou art not a Gd that hath pleasure in wickedness: neither shall evil dwell with thee."
Isaiah 6:3,"And one cried to another, and said, Holy, holy, holy, is the LORD of hosts: the whole earth is full of his glory."
Fourth, you cannot make a way to heaven.
Ephesians 2:9," Not of works, lest any man should boast."
Psalm 1:5," Therefore the ungodly shall not stand in the judgment, nor sinners in the congregation of the righteous."
Fifth, God made the way.
Psalm 3:8,"Salvation belongeth unto the LORD: thy blessing is upon thy people."
John 3: 16-18," For God so loved the world, that he gave his only begotten son, that whosoever believeth on him should not perish but have everlasing life. For God sent not his Son into the world to condemn the world, but that the world through him might be saved. He that believeth on him is not condemned: but he that believth not is condemned already, because he hath not believed in the name of the only begotten Son of God."
John 14:6, " Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me."
John 10:9,"I am the door: by me if any man enter in, he shall be saved,and shall go in and out, and find pasture."
John 10:15, " The Father knoweth me, even so know I the Father: and I lay down my life for the sheep."
John 10:18, "No man taketh it from me, but I lay it down, of myself. I have power to lay it down, and I have power to take it again. This commandment have I received of my Father."
John 10:28,29,30, "And I give unto them eternal life and they shall never perish, neither shall any man pluck them out of my hand. My Father, which gave them to me, is greater than all: and no man is able to pluck the out of my Father's hand. I and my Father are one."
Romans 5:7," For scarcely for a righteous man would one die: yet peradventure for a good man some would even dare to die."
Romans 5:8, " But God commendeth his love toward us, in that, while we were yet sinners, Christ died for us."
Romans6:23b, "..., but the gift of God is eternal life through Jesus Christ our Lord."
You need to repent.
Luke 13:3, "I tell you, Nay: but except ye repent, ye shall all likewise perish."
Psalm 2: 12, "Kiss the Son, lest he be angry, and ye perish from the way, when his wrath is kindled but a little. Blessed are all they that put their trust in him."
Romans 10:8,9 ," But what saith it? The wod is nigh unto thee, even in thy mouth, and in thy heart: that is the word of faith, which we preach; That if thou shalt confess with thy mouth and believe with thine heart that God hath raised him fro the dead, tho shalt be saved."
Romans 10:13, " For whosoever shall call upon the name of the Lord shall be saved."
John 1:12," But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name."
This is how come I can still talk to somebody when everyone visible is ignoring me. God is a spirit, only all powerful, that knows all things, and that is everywhere. He talks back too, through the Bible. These verses are all in the King James Version.