It?s great to see students of Sanskrit feeling inclined to take up the translation of astrological works. May I gently suggest, though, that you need to pay a little more attention to both sense and syntax in order to do justice to the texts? The existing translations of the B?hajj?taka may occasionally be imprecise or embellished, but they are not as wide of the mark as your own attempts would suggest. For example, someone wanting to cross an ocean would be more in need of a float than of a flood!

(Both possible meanings of Sanskrit
plava ? all three words being ultimately derived from the same Indo-European root.)
Looking at the first verse, its meaning, phrase by phrase, is as follows (the very first construction ?
m?rtitve parikalpita? ? is, admittedly, a little unusual):
Arranging the shapes of the moon (m?rtitve parikalpita? ?a?abh?to), the path of those who have no rebirth (vartm?punarjanman?m), called the Self by knowers of the Self (?tmety ?tmavid??), the offering [or: understanding] of sacrificers (kratu? ca yajat??), the lord of the immortal lights [or: of immortals and lights] (bhart?marajyoti??m) and master of the destruction, creation and sustenance of the worlds (lok?n?? pralayodbhavasthitivibhu? ca) ? he who is [thus described] in countless ways in the Veda (anekadh? ya? ?rutau), may he grant us speech (v?ca? na? sa dad?tu), the one of countless rays (anekakira?as), the lamp of the three worlds (trailokyad?po), the sun (ravi?).
The second verse isn?t just a list of epithets, so it doesn?t admit of such linear translation, as Sanskrit word order is different from that of English:
For those whose efforts at crossing the great ocean of astrological teachings have been frustrated (hor?tantramah?r?avapratara?e bhagnodyam?n?m) even (api) after manifold texts [authored] by those of acute mind (pa?udhiy?? ? bahu?a? ??stre?u), full of [proofs from] scripture and reason (?abdany?yasamanvite?u), have been studied [lit. ?seen?] (d???e?u) by numerous persons of acute understanding (bh?yobhi? pa?ubuddhibhi?) for the understanding of astrological results (hor?phalaj?aptaye), I commence [constructing] (aha? ? pr?rabhe) a raft of instruction (??straplava?), small (svalpa?) [but] rich in meaning (arthabahula?), comprising various procedures [or: metres] (v?ttavicitram).
I hope you can see how these still quite close translations actually hang together.