With your kind indulgence I have pasted together the suggestions you
offered thus rendering the stanza.
pu zu so'i so'i nanca
ne'i lo gugde be re'o le xamsi
gy se xabju lo nixli noi la'a cu'i
do morji fi ny no'u la .anabeLIS.
.i ji'a ny jmive pensi lo po'o si'o
ny prami gi'e se prami vau mi
[Sorry if this is posted twice]
It should be pointed out that
1) 'many years' is translated { lo nanca be li so'i }. { so'i nanca } means 'many [not necessarily continuous] year-long periods.
2) { noi la'a cu'i do morji fi ny } is grammatical but odd. The usual formulation would be { fi ke'a }, {ke'a} being the placeholder for the antecedent in a relative clause.
Not saying there may not be poetic reasons for those choices, but I thought it should be clear.
ui do ru'i cilre fi la lojban .i mu'o mi'e komfo,amonan