SORRY!
Dear friend you cannot get to heaven by "doing your best" because you best will never be good enough. That is precisely why Jesus had to die for you. The Bible says:
(Isaiah 64:6) But we are all as an unclean thing, and all our righteousnesses are as filthy rags; and we all do fade as a leaf; and our iniquities, like the wind, have taken us away.
(Isaiah 53:1-6) Who hath believed our report? and to whom is the arm of the LORD revealed? {2} For he shall grow up before him as a tender plant, and as a root out of a dry ground: he hath no form nor comeliness; and when we shall see him, there is no beauty that we should desire him. {3} He is despised and rejected of men; a man of sorrows, and acquainted with grief: and we hid as it were our faces from him; he was despised, and we esteemed him not. {4} Surely he hath borne our griefs, and carried our sorrows: yet we did esteem him stricken, smitten of God, and afflicted. {5} But he was wounded for our transgressions, he was bruised for our iniquities: the chastisement of our peace was upon him; and with his stripes we are healed. {6} All we like sheep have gone astray; we have turned every one to his own way; and the LORD hath laid on him the iniquity of us all.
(Romans 3:10-12) As it is written, There is none righteous, no, not one: {11} There is none that understandeth, there is none that seeketh after God. {12} They are all gone out of the way, they are together become unprofitable; there is none that doeth good, no, not one.
(Romans 3:23) For all have sinned, and come short of the glory of God;
(Ephesians 2:8-9) For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: {9} Not of works, lest any man should boast.
(Titus 3:4-7) But after that the kindness and love of God our Saviour toward man appeared, {5} Not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration, and renewing of the Holy Ghost; {6} Which he shed on us abundantly through Jesus Christ our Saviour; {7} That being justified by his grace, we should be made heirs according to the hope of eternal life.
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