could go to a heart class evening classes training institution class u got class for 3 to six months even up to nine months to get a higher level

You could do on the job training

Most companies will train you in housekeeping and do not need experience to do that job.

A lot of places sometimes do not require experience, they do training on the spot and it's pretty much just common sense as long as you know the basics of cleaning and being detail oriented and work at a fast pace goes a long way(scrubbing bathrooms,kitchen appliances and counters, change linens and towels, vacuuming mopping and replenish amenities etc) also if you think that you're a good housekeeper you can just make up a white lie on an application, a lot of places do not check for references

It's easy. Apply for a job at a hotel for a housekeeping position. The Housekeeping Supervisor/Inspector/Manager will train you on how to clean the units and what chemicals to use for each task. Stay organized and develop a system on how to get the task done in the allotted time. This is also a good way to know if this is what you want to do. Housekeeping is hard work, but with experience, you can climb up to higher positions.