If you don’t find a teacher soon, you’ll live this life in vain. It’s true, you have the Buddha-nature. But without the help of a teacher, you’ll never know it. Only one person in a million becomes enlightened without a teacher’s help.
If, though, by the conjunction of conditions, someone understands what the Buddha meant, that person doesn’t need a teacher. Such a person has a natural awareness superior to anything taught. But unless you’re so blessed, study hard, and by means of instruction you’ll understand.