Good. You said that you wanted to attain nirvana. That means the ending of all negative states of mind. It does not mean that nothing negative will happen to you after that though but it does mean that you will be able to experience it without turning it into a negative experience.
The problem is that that is impossible for almost everyone.
But you can achieve something like nirvana in your daily life. But in order to do that you have to create a very strong mind and be completely aware each moment of your life. After all, we have nothing but this exact moment. And as a result we can choose in this moment to do positive things and not do negative things. All negative things create suffering. All of them. But a great teacher named Buddhadasa pointed out that most people decide that they want the negative stuff instead (like porn, smoking, and drinking).
If you want to take the precepts to help you stay away from un-Buddha activity, and all un-Buddha activity creates suffering sooner or later, then I would suggest that at least once at day you that refuge in the Buddha, Dharma and Sangha and then explicitly vow to follow the training of the five precepts. Refuge means that you are following the Buddha, his teachings and the people on the path with you (really it means the enlightened people on the path with you) to get out of samsara.
traditionally you recite that 3x'sI take refuge in the Buddha
I take refuge in the Sangha
I take refuge in the Dharma
and then take the precepts:
I would repeat this 3x's too]
From now until this time tomorrow I will not kill any being
From now until this time tomorrow I will not steal anything
From now until this time tomorrow I will not misuse sex
From now until this time tomorrow I will not say harmful things
From now until this time tomorrow I will not use drugs (or substances that cloud the mind)
Taditionally you do these practice in front of a Buddha image. If you want to do that you can just image the Buddha in front of you.
Practicing the precepts is challenging. You have to decide that you want to do that (but you said you did). Given what you have said you may need to decide for yourself what the spirit of the precepts are. Four example, you indicated that you had broken things in your house/apartment. I personally would include the vow to not hit anyone or break anything in the vows but it's up to you.
Then you asked about a Buddha meditation or remembrance practice. There are many.
May you be well, happy and peaceful.