Hi thanks for the assurance, I am beginning to wonder though if
I am starting to obsess over every thought or deed, always worrying
that it is bad karma and would prevent me from rebirth in pureland,
constant worrying is making me feel bad so I wonder if there is
anyway I could stop worrying.
As long as you repent for your mistakes sincerely, make
ammendments and practice the dharma, you can avoid the effects of
karma even if the karma is originally very very serious.
e.g. Buddha said,
http://www.accesstoinsight.org/tipitaka/sn/sn12/sn12.070.than.html
Then, throwing himself down with his head at the Blessed One's
feet, Ven. Susima said to the Blessed One, "A transgression has
overcome me, lord, in that I was so foolish, so muddle-headed,
& so unskilled as to go forth as a thief of the Dhamma in this
well-taught Dhamma & Discipline! May the Blessed One please
accept this confession of my transgression as such, so that I may
restrain myself in the future."
"Yes, Susima, a transgression overcame you in that you were so
foolish, so muddle-headed, & so unskilled as to go forth as a
thief of the Dhamma in this well-taught Dhamma & Discipline.
Suppose, Susima, that a robber, an evil-doer, having been caught,
were shown to a king: 'This, your majesty, is a robber, an
evil-doer. Decree what punishment you want for him.' And so the
king would say, 'Go and — having bound him with a stout rope with
his arms pinned tightly against his back, having shaved him bald —
march him to a harsh-sounding drum from street to street,
crossroads to crossroads; evict him out the south gate of the city
and there, to the south of the city, cut off his head.' Then the
king's men, having bound the man with a stout rope with his arms
pinned tightly against his back, would march him to a
harsh-sounding drum from street to street, crossroads to
crossroads, evict him out the south gate of the city and there, to
the south of the city, cut off his head. What do you think, Susima?
Wouldn't that man, for that reason, experience pain &
distress?"
"Yes, lord."
"However much the pain & distress that man would
experience for that reason, Susima, the Going Forth of a thief of
the Dhamma in this well-taught Dhamma & Discipline is still
more painful in its result, more bitter in its result, in that it
leads even to the lower realms. But because you see your
transgression as such and make amends in accordance with the
Dhamma, we accept your confession. For, Susima, it is a cause of
growth in the Dhamma & Discipline of the noble ones when,
seeing a transgression as such, one makes amends in accordance with
the Dhamma and exercises restraint in the future."