If you're really that interested about jhanas, I recommend reading the visudimagga. It gives so many details and instructions on how to attain jhana using many meditation methods. https://www.accesstoinsight.org/lib/authors/nanamoli/PathofPurification2011.pdf
I also recommend reading this book. http://www.buddhanet.net/pdf_file/know-see.pdf
it's your karma to be a householder, forget the jhana, just be a good person & practice the precepts best you can. Abandon the thought of monkhood & solitary practice.
There were many princes who renunciated the world and became a monk during the Buddha's time. They didn't give up just because it's their karma to be a prince. If you are really serious about attaining jhana and nibanna, you should renunciate the world and become a monk. It's not easy to practice for jhana as householder.
A householder hears that teaching, or a householder’s child, or someone reborn in some clan.They gain faith in the Realized One, and reflect:
‘Living in a house is cramped and dirty, but the life of one gone forth is wide open. It’s not easy for someone living at home to lead the spiritual life utterly full and pure, like a polished shell. Why don’t I shave off my hair and beard, dress in ocher robes, and go forth from the lay life to homelessness?’
After some time they give up a large or small fortune, and a large or small family circle. They shave off hair and beard, dress in ocher robes, and go forth from the lay life to homelessness. (DN 2)
They also ordained as monks because they want to end suffering.
“Here, bhikkhus, some clansman goes forth out of faith from the home life into homelessness, considering: ‘I am a victim of birth, ageing, and death, of sorrow, lamentation, pain, grief, and despair; I am a victim of suffering, a prey to suffering. Surely an ending of this whole mass of suffering can be known.’ (MN 29)
During the Buddha's time, parents often tell their child to just be a lay person and make merit.
“Dear Raṭṭhapāla, this is your maternal fortune. There’s another paternal fortune, and an ancestral one. You can both enjoy your wealth and make merit. Come, return to a lesser life, enjoy wealth, and make merit!” (MN 82)
I recommend reading MN 82. Reasons for ordaining are mentioned there.
Making merit is always good. The Buddha always praised making merit. However you can't be free from samsara by just making merit alone. You have to realize the four noble truth with direct knowledge and become an arahant to be free from samsara and attain nibanna. Bhikkhs make the most merit because of patimokkha(227 vinaya rules) observance, restraint of sense faculties, of purification of livelihood, and that concerning requisites. Futhermore, they can give the gift of dhamma which is considered the best gift.
At the end of the day, it is your choice to ordain. You should think about it carefully. I recommend reading suttas that praises renunciation and talks about the dangers of sensual pleasures. I also recommend going on more retreats to be really sure if monkhood is what you want.