you should look into the dzogchen tradition of tibetan buddhism. it is about realizing ones enlightened nature and it doesnt take any other lifetime but the one you have.

and the noble truth of 'suffering' does not mean that every aspect of life is characterized by suffering. this is a common misunderstanding that turns a lot of people away from the buddha dharma.

it basically means that while there are joys and pleasures in samsaric life, they are fleeting. this is the nature of impermanence. constantly clinging to the good and constantly averting the bad will lead to suffering.