I cannot find my application folder on my phone after deployment

I cannot find my application folder on my phone after deployment.

Is there any easy way to view or search for a package on the phone?

I have searched data\data\ but found no inner folder nor my application package.

I then tried to copy the db file to the sd card

but my sd.canWrite() returns false I guess because it doesn't exist.

How can I fix this? or can I view the DB in my intelliJ easily without copying the db file?

public void exportDatabase(String databaseName) {
    try {
        File sd = Environment.getExternalStorageDirectory();
        File data = Environment.getDataDirectory();

        if (sd.canWrite()) {
            String currentDBPath = "//data//"+context.getPackageName()+"//databases//"+databaseName+"";
            String backupDBPath = "dontacllDB.db";
            File currentDB = new File(data, currentDBPath);
            File backupDB = new File(sd, backupDBPath);

            if (currentDB.exists()) {
                FileChannel src = new FileInputStream(currentDB).getChannel();
                FileChannel dst = new FileOutputStream(backupDB).getChannel();
                dst.transferFrom(src, 0, src.size());
                src.close();
                dst.close();
            }
        }
    } catch (Exception e) {

    }
}